Microcomputer_Digest_v02n08_Feb76 Microcomputer Digest V02n08 Feb76

Microcomputer_Digest_v02n08_Feb76 Microcomputer_Digest_v02n08_Feb76

User Manual: Microcomputer_Digest_v02n08_Feb76

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ICRDC PU-rER
DIGES-r
Volume 2, Number 8

INTEL

February, 1976

&SIEMENS 2ND SOURCE PACT

ROCKWELL PPS-8

Intel Corp. and Siemens jointly announced
a cooperation agreement in the field of microcomputers, encompassing microcomputer semiconductor products and related software and
support systems.
The agreement covers a cooperation for both
current and future microcomputer systems., It
provides the means to establish alternate
sourcing of each other's microcomputer products.
Both companies reported that they felt the
agreement would accelerate their development
and promote the use of this new technology.

FAIRCHILD

Ass EMULATOR

Rockwell Int'l has announced off-the-shelf
availability of a new "Assemulator" which it
described as a "total system development tool"
for its 8-bit PPS micr090mputers.
The new instrument facilitates assembly,
debugging and modification of PPS programs
while enabling real-time software check-out
of systems with peripherals, encoding of PROMs
and EROMs for field testing of prototypes,
the generation of ROM mask codes, and can even

&OLYMPIA SIGN F-8 AGREEMENT

Fairchild Camera & Instrument Corp. has entered into a license agreement with Olympia
Werke A.G. involving patents, patent applications and know-how associated with Olympia's
microprocessor system. The agreement specifically includes Fairchild's F-8 microprocessor and gives both Fairchild and any second
source they designate a broad license with
respect to Olympia's microprocessor technology.
(cont'd on page 2)

Two

SINGLE CHIP MICROPROCESSORS

The Essex International SX 200 Microprocessor is a complete P-channel MOS 4-bit single
chip micro designed to provide the advantages
of a computer architecture into a low cost IC.
According to the company, the single chip
provides all of the necessary control functions of a CPU, memory and I/O. Using 41 in·structions, the 8K-bit ROM is mask programmed
to control I/O, logic, arithmetic and data
flow functions. The 256-bit RAM provides 64
storage locations for data. In addition to
data storage, there are 16 individually settable, resettable and testable flag bits for
(cont'd on page 2)
PO BOX 1167, CUPERTINO, CA 95014 •

be used for acceptance testing of Rockwell's
devices and boards.
Complete with software and comprehensive
programming and operating manuals, the instrument, which is designated the PPS-8MP, sells
for $3,450.
The PPS-8MP software consists of a ROM-resident supervisory program providing utility
and debugging functions, and RAM-resident assembly and text editing programs.
The assembly program automatically translates the designer's source symbols and addresses into powerful, multi-function PPS-8
instruction.machine codes.
(cont'd on page 2)

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LILLIAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

SPECIAL FEATURES:
FAIRCHILD

&OLYMPIA

SIGN F-8 AGREEMENT

(from page 1)
Last month, suit was brought in New York
against Fairchild and Dr. David Chung by General Instrument Corp. claiming Fairchild had
acquired information about Olympia's microprocessor system from Dr. Chung, a former General Instrument employee. The complaint alleged this information was used in the design
of the F-S-microprocessor.
Fairchild, which had denied the allegations,
said the Olympia-Fairchild agreement includes
a complete release for any possible use of
Olympia's information in the F-S microproces-_
sor or otherwise.

Two

Volume 2, Number 8 I February, 1976
extensive search, replace, insert and delete
commands enabling easy modification of the
source program. The assembly and text editing
software is supplied on tape and is loaded into the machine's RAM with a TTY or TI 733 ASR
tape reader, or with an optional high speed
reader.
SYSTEM DEVELOPM ENT FLOW
ENTER

PPS-8MP
TEXT
EDITOR

PROGRAM
ASSEMBLY
ASSEMBLER

PROGRAM
DEBUG AND
REASSEMBLY

SINGLE CHIP MICROPROCESSORS

REASSEMBLE

(from page 1)
improving program control. The outputs are
programmable via a PLA, of which twelve are
individually settable and resettable under
program control and seven others which output
in parallel.
Data input can be in BCD or, if desired,
the SX 200 will directly interface with capacitive type touchplates.
The SX 200 is a low-end device intended
principally for applications in the home appliance industry. The microprocessor is compatible with touch-plate controls and can be
synchronized with the AC power line for direct
control of such power devices as SCRs.
A second 4-bit microprocessor, Bitsy, is
similar to the SX 200 but lacks its touchplate compatibility and power-line synchronization. A PROM programmable hardware emulator
is available-and software support includes a
FORTRAN assembler and simulator.
Bitsy contains 256 words of memory, 2-working 6-digit registers, a 6-digit accumulator,
42 instructions and I/O programmable decoding.
Quantity pricing for the SX 200 is under $6
and under $3 for Bitsy.

ROCKWELL PPS-8 ASSEMULATOR
(from page 1)
Supplementing the assembly program is character-oriented text editing software providing

cltI~

PO BOX 1167, CUPERTINO, CA 95014 •

DEBUG ANO
TRACE

REAL TIME
EMULATION
WITH
PROTOTYPE
HARDWARE

ROM EMULATION
WITH RAM

REASSEMBLE

FINAL
PROGRAM
TEST WITH
USER
HARDWARE
FINISHED
PRODUCT

QC TEST
PROCEDURE

PROM{EEROM
PROGRAMMER

DEVELOPED SYSTEM
IN STAND-ALONE TEST
WITH PROM{EEROM

UTILITY

GENERATE ROM
PROGRAM MASK
TAPES

BOARD DEVICE

TEST
ACCEPTANCE

TEST PROGRAM

The supervisory program is stored in ROM
which is supplied on a plug-in module in the
assemulator. Debug and utility functions include independent I/O re-assignment, break
pointing, single stepping, selective tracing,
and register or memory examination and modification.
After field prototyping is completed, the
PPS-SMP may be used to generate the tapes
used to define the ROM mask. The system can
also emulate any chip on a system's board,
and techniques have been developed by which
it can be used for acceptance testing of incoming devices and boards.
Components of the basic machine are a PPSS CPU, 6K bytes of RAM which are switch selectable in 2K byte segments for use in any

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LI lLiAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
prapartian af instructian ar data starage,
faur-wire part and mating plug fa~ ASR-33 TTY
type terminals, RS232-C campatible part far
TI 733 ASR type terminals, hexadecimal cantral
keybaard, hexadecimal memary address and I/O
bus display, pawer supply and chassis with
slats far a variety af additional madules.
Accarding to. Rackwell, ane af the mast pawerful aptians far the PPS-8MP Assemulatar is
a flappy diskette aperating system (FDOS-scheduled far availability early in 1976). The
rDOS aptian includes an intelligent disc cantraIler packaged with dual disc drive and a
pawerful saftware extensian af the basic supervisary pragram.

NATIONAL INTRODUCES SC/MP
Natianal Semicanductar Carp. has afficially
intraduced the SC/MP micrapracessar. SC/MP is
a pragrammable 8-bit parallel pracessar implemented an a single integrated circuit chip. It
cantains ane 8-bit accumulatar, faur 16-bit
painter registers (ane af which is dedicated
as the pragram caunter), an 8-bit status register, and an 8-bit extensian register. With
all af this built in, SC/MP can directly address up to. 65K bytes af memary.
SC/MP Functional Block Diagram

aRED
BUS

ACCESS

ENIN

5
3

EHOUT 4

NHolO 6

NADS
DATA I/O

NWDS

NRDS

The architecture af SC/MP is designed with
an-chip timing circuits, eliminating expensive
PO BOX 1167, CUPERTINO, CA 95014 •

Volume 2,}Number 81 February, 1976
cumbersame clacks. It also. affers TTL campatibility far easy interfacing with ather campanents within a system.
Architecturally, SC/MP emplays a unified
bus system in which the CPU, memary and peripheral devices are all cannected to. a camman data bus. This canfiguratian enables memary reference instructians to. reference peripheral devices. It also. allaws multiple
SC/MPs to. be tied to. the bus far daisy chain
aperatian; when ane SC/MP staps transmitting
ar receiving, it natifies the next SC/MP in
line that it can take aver. In additian,
SC/MP architecture pravides serial data and
cantral streamlining under saftware contral
and has built-in pragrammable delay.
SC/MP is priced at $10 in quantities and
samples are naw available fram the factary.

OEM

MICROCOMPUTER SYSTEM CARDS

Micracamputer Assaciates Inc. has annaunced
a new series af OEM Micracamputer System Cards.
The new System Cards are designed as law cast,
stand-alane cards with full micracamputer capability including PROM and RAM memary and I/O.
The series consists af faur cards, each
based araund different micrapracessars: the
8080A, the 6502, the 6800 and the 2650.
Each card cantains a crystal-cantralled
clack, lK x 8 static RAM, 2K x 8 PROM sackets
ar 4K x 8 mask ROM sackets, 24 bidirectianal
I/O lines, fully buffered address/data lines,
DMA capability, interrupts, full ,temperature
range aperatian (OOC to. 70 0 C), and a small
size af 4.25" x 7". Each card is fully assembled and tested.
The cards affer a unique intercannectian
technique far minimizing the cast af expensive
card cages and backplanes shauld additianal
cards be needed. Other card sizes are available with minimum arder.
A spakesman far MAl states that "the cards
are designed to. satisfy 90% af small-ta-medium OEM requirements and can be used as the
main pracessing card by 75% af the large OEMs.
Furthermare, by affering the cards with several micrapracessars, they can be used to. replace a wide range af existing designs already
based araund existing micracamputer software,
such as far the 8080 and 6800."
(cant'd next p~ge)

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LI LLiAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
MAl states that "there are numerous firms
wi th end-user experience that could use an OEM
Microprocessor System Card but ~o not have
the time or expertise to develop their own
boards ..... these are the people we are interested in."
To further support this new series of cards,
MAl has available 4K x 8 RAM cards, 2K, 4K or
8K x 8 PROM cards, I/O cards and power supplies in addition to extensive software appli.
catlons support should the user need help ln
"bringing up" their microcomputer-based products.
Typical applications include industrial
process control, intelligent instruments, data communications, "smart" controllers, small
business systems and video games.
Prices start at $375 in single unit orders
and $295 in 100's. Quantity and OEM discounts
are available upon request. Delivery is 3045 days ARO.
.

Volume 2, Number 8 I February, 1976
expanding memory and I/O capacities via the
system bus, lK static RAM, up to 4K of ROM,
parallel I/O with 48 I/O ports, serial I/O
with programmable USART, RS232C and TTY interfaces.

}

INTEL SINGLE BOARD COMPUTER
The Single Board Computer, a complete computer system contained entirely on one small,
plug-in circuit board, has been introduced by
Intel Corp.
The new computer, SBC 80/10 Single Board
Computer, is designed to be used as a complete
one-board computer subsystem. It provides
processing power, memory storage capacities,
and I/O facilities required for most OEM processing and control subsystem applications,
said Bill Davidow, manager of microcomputer
products.
The key to the SBC 80/10's versatility is
its programmable parallel and serial I/O,
which allows OEMs to use the same SBC in different equipment models or entirely new generation equipment requiring different I/O configurations and data transfer techniques, by
simply changing a few program instructions
and plugging in appropriate line drivers and
terminators.
The SBC sells for $295 in quantities of 100
and $495 in single unit quantities. The board
measures 6.75" by 12".
The board contains a complete centra18080A
processor subsystem with all required control
circuitry, crystal-stabilized system clock,
system bus control, high current drivers for

cI~;

PO BOX 1167, CUPERTINO, CA 95014 •

1. Interrupts onginating from the Programmable CommunLcations Interface and Programmable Peripheral Interface are Jumper selectable.

SBC 80/10 BLOCK DIAGRAM

Davidow noted that the board is the first
OEM computer to be assembled almost entirely
with LSI devices. These include the 8080A
microprocessor, 8251 USART, two 8255 Programmable Peripheral Interface units, eight 8111
lK-static RAMs, four optional 8708 8K EPROMs
or interchangeable 8308 masked ROMs.

Standard boards and cardcage assemblies
are available to expand SBC 80/10 memory and
I/O capacity. The SBC-016 16K RAM board,
SBC-406 6K PROM board, and SBC-4l6 16K PROM
board can all be used to expand SBC 80/10
memory. The SBC-508 general purpose I/O board
provides an additional 32 input and 32 output
lines. The SBC-l04 combination memory and I/O
expansion board provides 4K bytes of RAM, ca(cont'd next page)

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LI LLiAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
pacity for 4K bytes of EPROM or ROM, 48 programmable I/O lines, and a programmable communications interface with RS232C compatibility. Expansion boards may interface with the
SBC 80/10 using a standard modular expandable
cardcage, which houses up to four boards.
Intel's entire line of 8080 hardware and
software development aids can be used in support of the SBC 80/10.

TECHNOLOGY:
MOSTEK LOWERS F8 PRICES
Mostek has announced lower prices on the
company's 2-chip F8 microcomputer family. The
MK 3850 CPU and the MK 3851 PSU (Program Storage Unit) were reduced from $64 to $28 in 100999 quantities and from $85 to $55 in single
unit quantities.
Van Lewing, Mostek's microcomputer marketing manager, emphasized that this price reduction now allows a user to define a complete
F8 system with lK ROM, 48-bit I/O ports, one
timer, 64 bytes of RAM and 2 interrupts for
less than $45 for 1000 sets.
Mostek's F8 evaluation kit, dubbed "The
Survival Kit," remains at $297 unassembled
and $397 assembled. Since the recent announcement of this kit, a FORTRAN IV cross-assembler
which runs on 16-bit computers has been added
at no cost to the package.

MICROCOMPUTER-BASED PRODUCTS:

2650

SOFTWARE DEVELOPMENT SYSTEM

The ~Pal 265 SDS Software Development System by Processor Applications Ltd., is the
latest software development tool designed for
the Signetics 2650 microproce~sor. According
to Dan Nesin, president, the hardware design
has been optimized to provide maximu~ versatility and reliability to the user at minimum
cost.
At the system's heart is a Signetics 2650
microprocessor which resides on the CPU card
together with the ~Pal Monpal system monitor.
The monitor is contained in 2K bytes of PROM.
An I/O interface card contains all the necessary logic to interface the 265 to a TTY, CRT
or a high speed paper tape reader. An EIA

cI~~

PO BOX 1167, CUPERTINO, CA 95014 •

Volume 2, Number 81 February, 1976
RS232C interface is provided as well as a control line for an external device such as an
ASR-33 reader.
The 8K memory card, which completes the
basic system, is fabricated with popular static RAMs and can be strapped to reside anywhere
in the 2750 usable memory space.
Nesin said the ~Pal Fixit editor is a character string editor available standard on
paper tape or purchasable in PROM. The resident version does not have to be loaded for
each use.
The ~Pal assembler is contained in 5K bytes
of memory. Variable length symbolS are used
to optimize space with the assembler supporting approximately 380 4-character labels in
the basic system.
The assembler also allows (1) the symbols
to be defined externally and (2) large programs to be segmented on tape for ease of
storage and future editing. Left and right
margin control is provided to allow assembly
of source tape dumps from timesharing or
source computers other than the ~Pal 265 SDS.
The ~Pal SDS is priced at $5,550 and delivery is 30 days.

MULTI-MICROPROCESSOR NETWORK
Codex Corp. has unveiled a family of multi-microprocessor implemented computers dedicated to communications and capable of processing more data than previously assigned to
front-end processors.
In addition to handling message management
and network protocol, the new 6000 Series of
Intelligent Network Processors are capable of
replacing conventional time-division multiplexers while adding error control and providing a higher level of data compression.
The INP series is complemented by a wide
choice of peripherals and price is dependent
upon system configuration.

SOURCE 700
MSI Data Corp. 's new programmable off-line
remote data terminal, designated the SOURCE
7600, was announced by Gary E. Liebl, vice
president of marketing.
The new source data entry terminal incor(cont'd next page)

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LILLIAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

Volume 2, Number 8 I February, 1976
clock, 512 or 1024 bytes of EROM, 128 to 512
bytes of RAM, serial I/O (one ACIA UART compatible interface), and parallel I/O (one or
two PIAs--16 lines each). WINCE is fully expandable to 64K bytes of ROM, RAM and/or I/O.
Firmware includes FANTOM--a debug/monitor
program that allows loading, debugging and
saving of user programs. Prices range from
$238-$398 depending on configuration and quantity.
Other WINCE modules available now include
a RAM module containing up to 16K bytes and
a PROM programmer. The company reports that
other WINCE modules are currently in development. Available software includes a cross
assembler, simulator, and PL/W for the 6800.

porates an Intel 8080 microcomputer, which is
permanently programmed with a full set of basic programming commands to allow the onsite,
non-technical operator to create original formats for data input. A special "Free Form"
mode allows the terminal to accept and then
transmit narrative, unformatted data as well,
so that special instructions and other messages can also be communicated to and from
the computer center.
One cassette drive is standard; a second
cassette is optionally available for greater
convenience in loading programs, editing and
duplicating cassettes.
The machine incorporates both a full typewriter keyboard and a separate accountingstyle 10-key touchpad for rapid entry of numeric data. A 32-position LED display permits
the operator to edit each line of data while
still buffered before it is printed on the 32
character journal tape. An external line
printer can be interfaced to the SOURCE 7600.
SOURCE 7600 will be available in production
quantities in April 1976; delivery is 60 days
ARO. The unit is priced from $3500 to $4500,
depending upon optional features, in quantities up to 10; discounts are available.

WINCE

MICROCOMPUTER

Wintek Corp. has unveiled their Wince con. trol module, a single card microcomputer system incorporating the M6800 microprocessor.
The 4~" x 6~" PC board contains one 6800,

cltI~

PO BOX 1167, CUPERTINO, CA 95014 •

~C INTELLIGENT MATRIX PRINTERS
Sycor has unveiled an extension of its distributed computing concept, a new series of
microcomputer-controlled, intelligent matrix
printers of its own design and manufacture,
for use on the Sycor 440 clustered terminal
processing system.
The printers, operating at 60, 120 and 180
cps, use a microcomputer with 5K bytes of memory for real time control of all system dynamics, including print head needle timing, character registration, paper acceleration profiles, and adaptive print head acceleration
and deceleration; and performs mUltiple task
processing for simultaneous data transfer,
line feed, keyboard scanning and indicator
drive.
Lease pricing is available with the purchase price beginning at $5600. Deliveries
are ·expected in the second quarter, 1976.

DISC-BASED MICROCOMPUTER
the boxed version of DEC's LSI-ll, the PDPllV03, consists of the PDP-ll/03 dual floppy
drives, and offers a choice of the LA36 printer or VT52 CRT terminal. The microcomputer
is supplied with the TRII real time OS and
total capacity of the floppy disc drives is
greater than 500K x 8 with an average access
time of 483 ~s. Bidirectional transfer occurs at 10K.
The PDP-llV03 is priced at $9950. FORTRAN
IV or BASIC is optional.

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LI LLIAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

~CS JOIN

U.S.

CELEBRATION

As 1976 quickly pushes forward, more and
more spectators are joining the U.S.'s 200th
birthday celebrations. The latest, microcomputers. A microcomputer has been tied to a
digital voice synthesizer and recites the
Gettysburg address. Another micro sews stars
and stripes on flags. And if you're in Nevada, you can challenge the F8 microprocessor
to the exciting game of Black Jack.

~C DATA

&TIMING

GENERATOR

A microcomputer controlled data and timing
generator Model RS-432 has been developed by
Interface Technology for use in digital circuitry testing where unique digital patterns
and special control timing signals are simultaniously required. The TS-432 achieves its
sophistication by blending two concepts, digital word generation with microprocessors.
The microcomputer can be programmed to allow the user to generate serial or parallel
data with specified output periods; generate
data from selected blocks of word memory;
generate data contingent upon special inputs
such as levels, pulses or sense switches; as
well as generate data continuously or in single shots.
The instrument is completely self-contained
and requires no external clocks or DC power.
The unit is. priced at $4995 with delivery of
10 to 12 weeks.

UC-BASED MULTIPLEXER

Volume 2, Number 8 I February, 1976
modates up to 16 asynchronous, 8 synchronous
digital data channels or a mix of both.
Intended for simple point-to-point multiplexing between terminal clusters and computer centers, the M1308 Multitran multiplexer
supports wide mixes of RJE terminals, synchronous CRT controllers and interactive asynchronous terminals over a single voice-grade telephone line.
The microcomputer makes format compatibility possible with TRAN's other network products such as the MllOO series multiplexers,
M3000 Network Management switches and M3200
PACUIT Netowrks. Programming makes the multiplexer flexible, because a new program loaded
into the microcomputer meets new synchronous
and asynchronous channel allocation needs.
Constructed with a single logic circuit board
and a separate plug-in power supply, the multiplexer provides maximum up-time, since the
device is so easy to repair.
The basic M1808 is priced at $1800 with
other configurations available. Quantity discounts are available. A complete basic 16channel point-to-point mUltiplexing network
between a terminal cluster and a computer center costs less than $8000.

INTELLIGENT DATA PROCESSING TERMINAL
Under development at General Computer/Systems, HAROLD is a transaction-oriented gener~
al purpose computer system with communications
capabilities.
The system contains a DEC LSI~ll· microcomputer, 40K of memory expandable to 256K, and
will support up to eight 612 character CRT
terminals. East CRT terminal is capable of
funning a different program simultaneously
with the system running several background
programs. Other features include cartridge
dLscs, diskettes, printers, tape drives and
card readers.
User programmable in ASNI compatible COBOL,
the system will have its own disc operating
system and will support sequential, relative
and index files. In a Distributive Information Netowrk, HAROLD will be able to accomodate 2100 users simultaniously.

A new 8080 microcomputer-based multiplexer
from Computer Transmissi~n Corp. (TRAN) acco-

cltI~

PO BOX 1167, CUPERTINO, CA 95014 •

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LI lLiAN lAU, Associate Editor; PATR ICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

Volume 2, Number 8 / February, 1976

8080 MICROCOMPUTER CARD
Data Works Instrumentation i~ marketing
their Model 226 8-bit microcomputer. The Intel
8080-based system contains DMA address and data-bus drivers, status latches, crystal clock
and 8-bit vectored priority interrupt.
The output frequency can be divided down
for serial data communications. A company
spokesman noted th?t the firm is planning
several new systems that will use other microprocessors.

~C INTERFACE FOR WANG

600/700

Digital Laboratories is using a built-in
microcomputer in their WU-7 to allow any Wang
600 or 700 programmable calculators to communicate between themselves, with other computers, terminals and many other devices at data
rates from 110 to 9600 bps. The $2450 instrument performs code translation, formatting,
buffering, serializing, etc., so that the simple I/O procedures of the calculators are retained.

ACQUISITION/ANALYSIS/CONTROL SYSTEM
The PAC-IO Portable Data Acquisition, Analysis and Control System is currently available from Forth, Inc. The microcomputerbased system includes a full graphic terminal,
512K bytes of floppy disc storage system, 16channel multiplexed A/D converter and digital
I/O.

RECEIVE-ONLY TELEPRINTER

TI TERMINAL POLLING SYSTEM
A new system designed to query disbursed
networks of Silent 700 Model 742 Programmable
Data Terminals has been introduced by Texas
Instruments.
The new 700 TPS Terminal Polling System
consists of a TI 900 microcomputer with up to
64K bytes ·of RAM, a TI 9-track, 800 or 1600
BPI tape drive and a Silent 700 Model 733 ASR
data terminal with dual magnetic tape cassettes. By using up to four built-in modems
and auto call units, the system can poll as
many as 200 model 742 terminals over as many
as four telephone lines. Or, as an alternate

PO BOX 1167, CUPERTINO, CA 95014 •

configuration, the system can accomodate up
to eight telephone lines with the addition of
external modems and auto call units.
A major feature of the polling system is
that it collects and stores data in an IBM
compatible format. Following system start-up,
the 700 TPS automatically polls and stores
data on a 9-track tape in a format compatible
for processing by a host computer. In turn,
resulting output from the host computer can
be redistributed automatically via the TPS to
the terminal network.
Base purchase price for the TPS is $37,800
and the 12-month lease rate is $1,200, including maintenance. Deliveries will begin in
March 1976.

Marketed by Extel Corp., the RO ReceiveOnly teleprinter contains built-in service
diagnostics that are controlled by a microcomputer. Selectable online, type choices
include upper/lower case, expanded or boldface character and underlining. Continuous
short-line printing needs no fill character.
Optionally available are 103, 108 or 113
type built-in modems; selective calling for
most 5-, 6-, or 8-level procedures; 20-character answerback; page formatting; and national alphabet or special character sets.

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LI LLiAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

ADC MICROCOMPUTER
Series 70, based on an Intel 8080 microprois a complete general purpose microcomputer designed by Applied Data Communications for communications systems, test applications, process controls, monitoring, data
acquisition and dedicated ROM operated device
controllers.
The system offers 4K RAM expandable to 16K
and lK ROM expandable to 4K. Terminal communication is provided for TTY, CRT or modem
through an asynchronous I/O with speed-select
from 110 to 9600 baud. Peripheral communications is through two flat ribbon cables, and
both DMA and non-DMA device controllers can
be used.
Options include a front panel console, IBM
compatible floppy disc for interfacing up to
eight drives, a tape cartridge, programmable
real time clock, line and character printers,
7- or 9-track magnetic tape, synchronous/
asynchronous communications, general-purpose
I/O card, and ROM programmer. Software support includes a debugger, assembler and an
editor on the disc.
c~ssor,

MODULAR

pC INTERFACES To PDP-II

Wyle Computer Products, a division of Wyle
Laboratories, announced a new modular 8080
microcomputer system. The ~P Series microcomputer system is designed with major subsystems on individual logic cards to allow
the designer flexibility in configuring memory and I/O structure. The card size is directly compatible with the existing Wyle logic and card line, allowing for interface development and packaging in the same card file
with the microcomputer system. A unique aspect. of the ~P Series is the availability of
an interface to the DEC PDP-II, which allows
the PDP-II to exercise full control·over the
microprocessor address, control and- I/O busses.
This, along with a proprietary Microprocessor
On-Line Development System (MODS) and cross
assembler, also available from Wyle, allows
the user to completely develop and debug microcomputer software utilizing the larger
system. A RAM/ROM memory module is available
for program development directly on the mi-

PO BOX 1167, CUPERTINO, CA 95014 •

Volume 2, Number 8 I February, 1976
crocomputer system.
The ~P Series CPU module is~priced at $170.
Memory is priced at $100 for lK RAM and $245
for the RAM/ROM module. Other modules are
priced from $30.

4-BIT GENERAL PURPOSE COMPUTER
The Automated Computer Systems-4040MC Microcomputer is a low cost, totally self-contained PCB modularized parallel 4-bit general
purpose programmable computer. The 4040MC can
be configured as an Assembler/Simulator-PROM
programmer software development microcomputer
system with supporting operating system software, or as a conventional microcomputer to
be customized and programmed by the user for
various applications.
The basic microcomputer contains five basic
functional plug-in modules that are interconnected through a 14 PCB slot PC mother board
card rack assembly housed in an aircooled
cabinet.
The functional modules include an Intel
4040 microprocessor CPU board, a combination
2K PROM/1280 word data RAM/16-buffer Output
port board, an 8-port tri-state universal I/O
board with handshaking capabilities, a plugin switching regulated power supply module,
and a full computer control/HEX display panel
board. The interconnect mother board provides spare PCB connectors for user custom
expansion using either additional basic functional modules or standard module options.
Single unit price is $2,115 and delivery
is 45 days.

8080-BASED MEMORY MODULE
2

The MI Data Systems Inc. DESIGN 349 Memory Module is an Intel 8008 microcomputerbased message processing system. The standard
349 has its assembler program stored in 2K
ROM and has a 2K RAM for data or additional
program storage. The RAM can be expanded to
6K in lK segments.
The 2K ROM containing the assembler program can be replaced with a ROM set of 256 to
2048 characters containing a special application-oriented program. This special program
approach requires no initial loading from ex(cont'd next page)

(408) 247-8940

MICROCOMPUTER DIGEST
ternalstorage but is restricted to applications where program changes are not required.
The DESIGN 349 uses its internal 8008 to
control its basic I/O and arithmetic functions
for such applications as message storage, code
conversions, data rate conversion, data formatting and data logging for peripherals.
Further expansion of the memory from 6K to
14K, in increments, is available as a factory
option.

TENNEY MICROCOMPUTER PROGRAMMER
Tenney Engineering is introducing a completely new programming module using microcomputer techniques. Offered as a standard
option, the new programmer interfaces with
all Tenney environmental test chambers and
can be used in place of older cam, two-point
or punched tape programmers.
With programmable memo~y, the instrument
is digitally addressed in English terms. The
microcomputer assumes command of temperature
and humidity set-points, slope rate, dwell
time, and secondary functions such as mode
selection.

Volume 2, Number 8 I February, 1976

WHERE SHE STOPS

Determining where the wheels on a slot machine will stop is the major function of an
Intel 4004 microcomputer now incorporated into a new series of electronic one-armed bandits manufactured by Allied Leisure Products.
The machine will effectively look and operate
the same as the mechanical types currently
used in Nevada, reports the company. It will
even have the same old familiar clunk-clunkthanks sound.

MICROCOMPUTER SOFTWARE:
F-8 CRoss-AsSEMBLER
A cross-assembler for the Fairchild F-8
microprocessor has been developed by Logic
Systems. Designed to run on a PDP-8 microcomputer, the software will handle any size program up to a maximum of 600 labels.
Features of the program, according to the
company, are free form input data, formatted
list output, "Fair Bug" loader format, and a
simplified instruction set. The assembler
resides in 8K of memory.

INTERMETRICS DEVELOPS M6800 PL/M
Intermetrics has developed a high-level
programming language, PL/M6800 for the Motorola 6800 microprocessor. The program produces
optimized object code in a format directly
usable by the Motorola Minibug/Mikbug and Exbug loader functions.
Ihtermetrics reported that the PL/M6800
compiler is compatible with Intel's PL/M language. The compiler is available on GE Information Services Timeshare Systems. The company also said the compiler will be available
for purchase at a later date. The program
runs on IBM 360 and 370 computers.

8080 ASSEMBLER/SIMULATOR
#

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MD by letting your sUbscription run out.

cit!;

PO BOX 1167, CUPERTINO, CA 95014 •

Two software products available from FBE
allow users to simulate products using the
8080 microcomputer on any 4K DEC PDP-8 minicomputer.
Cal-80 is a three-pass symbolic assembler

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LILLIAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RA Y HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
that accepts 8080 instructions from paper tape
and produces a PROM image tape and a formatted
program listing. SIM-80 is an interactive
simulator that emulates the 8080 on the PDP-8.
Each program is available in paper tape for
$15 or as a source listing for $50.

UCC SUPPORTING POPULAR pPS
University Computer Co. (UCC) has announced
that a series of assemblers, debuggers and
support software for a number of popular microprocessor are currently available on their
remote computing network.
Available simulators handling the ROM/RAM
environment, simulated interruptions and I/O
operations were designed to aid debugging of
programs for the Intel 4040, 4004, 8080 and
8008, Fairchild F8 and others.

NEC TIMESHARE NETWORK
A worldwide timesharing network for developing and simulating programs for the 8080
microprocessor has been announced by NEC Microcomputers. The service is accessed through
GE's Mark III timesharing network. The library contains assemblers, debuggers, simulators and editors.

Volume 2, Number 8 I February, 1976

MEMORIES AND PERIPHERALS:
PROM PROGRAMMER KIT
The 2708/2704 PROM Programmer Cramerkit
just announced by Cramer Electronics,' Inc. is
a complete package of components, software
and design documentation necessary to build
a self-contained programmer for the popular
2708 lK x 8 and 2704 512 x 8 PROMs. All timing requirements of the PROM are taken care
of by the hardware, allowing the programmer
to operate asynchronous,ly with the processor,
thereby minimizing the required software.

FLOPPY DISC SYSTEM
CDI has announced an Altair 8800 floppy
disc system that is available in kit form.
The system provides RS232C entry to any microcomputer and includes the CDI floppy disc
operating ~ystem.

WIRE-WRAP ~P SOCKET BOARD

8080 RESIDENT ASSEMBLER
An 8080 resident assembler that assembles
a compatible subset of the Intel language and
generates machine code directly into memory
for immediate execution has been developed by
Micro Systems Software.
Occupying less than 2K bytes of PROM or
ROM, the language features all Intel-defined
instruction mnemonics and special program
pseudo-ops, including DB, DW, DS, ORG, EQU,
and END. The assembler is priced at $495 and
delivery is one week.

~C LINE

CRoss-AsSEMBLERS

First Data has announced the availability
of cross-assemblers for the Fairchild F-8,
Intel 8080, TI TMS 8080, Motorola M6800 and
the LSI-II microcomputers.

PO BOX 1167, CUPERTINO, CA 95014 •

Cambion has introduced the first in a
series of support wire-wrap microprocessor
socket boards for use with the Motorola M6800
Evaluation Kit. Designated Cambion PIN 7872000-03-03-00, the board accomodates all of
the integrated circuits in the evaluation kit.
Included as part of the pre-wired board is
a hand wire-wrap tool, a selection of pre-cut
and stripped wire-wrap wire, the edge card connector, standoffs, and mounting hardware. Also included are insertion and witharawal tools
for both widths of i~tegrated circuits (.3
and .6 inches).
Availability is current and unit price is
$197.

(408) 247-8940

MICROCOMPUTER DIGEST

COMPAcT DATA PRINTER
Series EDP1600, a small highly reliable electronic data printer, has just been announced
by C-TEK, Inc. The EDP1600 features non-impact electrosensitive print heads instead of
the mechanical drums and print wheels normally associated with mechanical printers. An
inexpensive means for converting 4-bit binary
information to a permanent printed form, the
EDP1600 was designed for coincidental printout with digital display in applications involving digital measuring sets, counters, calculators and computer end units.
The Standard Series EDP1600 prints 16 numeric characters per line from 4-bit binary
TTL inputs at up to two lines per second.
ASCII alphanumerics are also available. Characters are numeric 5 x 7 dot matrix type.
Single quantity prices start at $550 and
OEM discounts are available. Delivery is
stock to 30 days.

MICROCOMPUTER POWER SUPPLY

Volume 2, Number 81 February, 1976
They include a pair of high-speed, large scale
factory programmable memories designed for
computer related systems or to enhance the
speed effectiveness of MaS microprocessor designs and a three-part series of LSI bus transceivers for the AM2901 bipolar microprocessor
family.
The five memories are the AM9208 512 x 8
ROM; the AM9216 2K x 8 ROM; the AM2905 quad
two input bus transceiver with open collector
outputs and three-state receivers; the AM
2906, a quad two-input bus transceiver with
open collector outputs, three-state receivers
and a four-bit parity checker/generator; and
the AM2907, a quad bus transceiver with open
collector outputs, three state receivers and
a parity checker/generator. Prices start at
$6.50 to $25.00 in 100 quantities.

pC SUPPORT CIRCUITS
Datel Microelectronics has introduced four
new circuits for use in microcomputer-based
products. They include a $49 12-bit, 8 ~s
A/D converter; a $24 12-bit, 300 ns D/A converter; a $16.50 5 ~s, .01% setting time,
sample and hold circuit; and a $5.95 300 ns,
8-bit D/A converter. All prices are for 100
quantity.

HIGH ACCURACY

AID

CONVERTERS

The Boschert Associates' Model OL80 is a 4
output, 2 lb. switching type power supply designed to power microcomputer systems. The
four output voltages are +5V at lOA max, ±12V
at 2A max and either -9 or -5V at 2A max.
Total power output is 80 watts max. The supply has overvoltage, overcurrent and reverse
voltage protection.
The supply is priced at $199 for small
quantities and delivery is 30 days ARO.

NEW LSI Bus TRANSCEIVER
Five new devices have been added to Advanced
Micro Devices' integrated components line.

cI~~

PO BOX 1167, CUPERTINO, CA 95014 •

A new two-package microcircuit pair, designated 8052A and 8053A, introduced by Inter-

(408) 247-8940

MICROCOMPUTER DIGEST
sil, Inc. provides the circuitry for an analog-to-digital converter capable of up to
±40,000 counts, with a price,according to Intersil, that makes it competitive with ±2,000
count devices.
The 8052A provides signal conditioning circuits, including buffer amplifier, integrator,
comparator and voltage references on chip.
The 8053 provides the A/D switch network, plus
switch drivers, on chip.

Volume 2, Number 8/ February, 1976
taining an input multiplexer, differential instrumentation amplifier, sample/hold amplifier,

HI-PERFORMANCE 4K RAM
Mostek's latest 4K RAM entry features 200
ns access time and 10% tolerance on all supplies. The new circuit, designated MK 4027,
features Schottky-TTL compatibility, memory
system performance matching that of 160 ns,
22-pin 4K's because the MK 4027 eliminates
the 40 ns delay of the 12V clock driver.
In addition to improved performance characteristics, Mostek's MK 4027 also incorporates direct interfacing capability with TTL,
low capacitance inputs and outputs, on-chip
address and data registers, two methods of·
chip selection, and compensates for system
timing skews in the column address timing.
Also, the MK 4027 offers a unique cycling
operation called page-mode for successive memory operations at mUltiple column locations
at the same row address with increased speed
of 135 ns access and decreased power.
The MK 4027 is available in a 16-pin ceramic package and is prices at $24.20 in 100
quantities.

Low

COST DATA ACQUISITION SYSTEM

A low cost data acquisition module series,
designated DATAX-OEM, has been introduced by
Data Translation Inc. The new series offers
four models, starting at $130 (in 100s) for
the DT 820, an 8-channel, 8-bit resolution
module offering a throughput rate of 50 KHz.
The top of the line DT835 features a throughput rate of 30 KHz, 16-channels, 10-bit resolution for $150.
The DT825 has 16 channels, 8-bit resolution and 50 KHz throughput at $140. The DT830
features 8 channels, 10-bit resolution at a
throughput of 30 KHz for $140.
Each model is a complete D/A system con-

cI~;

PO BOX 1167, CUPERTINO, CA 95014 •

high speed A/D converter, and all control and
programming logic. Linearity of all models
is :I:~ LSB, multiplexer operation canbe either
sequential or random, and analog signals either unipolar or bipolar.

AMD INTRODUCES 4K RAMs
Advanced Micro Devices has announced a new
pair of 4K dynamic RAMs. Available in a 22pin package with separate data input/output
circuitry or in an 18-pin version with common
data I/O circuitry. AMD says the devices
were developed as superior plug-in replacements for similar parts manufactured by Intel
and ·TI as well as others.
Designated the AM9050 (18-pin) and AM9060
(22-pin), these silicon gate MaS memories
feature access times to 200 ns and maximum
power dissipation of 750 mW. Both devices
require only a single clock and all inputs
and outputs except clock are TTL compatible.
The RAMs are available for immediate delivery from Hamilton/Avnet, Cramer and Schwe~
ber Electronics. Prices in 100-up quantities
begin at $15.30.

If you are not already a subscriber, why not
begin so as not to miss any uC news.

(4081 247·8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LI lLlAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

MOS EQUIVALENTS

Volume 2, NumberSI February, 1976

PEOPLE, LITERATURE AND EVENTS:

OF BIPOLAR lK RAMs

OEM MEMORY SYSTEMS
A new business operations center to service
OEMs has been formed within the Memory Systems
Division of National Semiconductor Corp. Heading the n~w operation is ROBERT H. WELCH, formerly the director of OEM marketing for the
division. Reporting to Welch is a two-man
marketing team consisting of DONALD L. MILLER,
who becomes director of OEM marketing, and
DOUGLAS J. FELDER, who has been named manager
of standard product lines.

GILAUNCHES SUIT AGAINST FAIRCHILD

The first MOS equivalents of 1024-bit bipolar high-speed RAMs have been introduced by
Intel Corp. The new Intel 2115 and 2125 family can operate as fast as their bipolar
count~rpa~ts, at the same power supply voltage (+5V) and logic levels. However, they
cost less and reduce memory system power dissipation by 35% or more.
. The In:el 2115 and 2125 are TTL compatible,
pln-for-pln replacements of the 93415 and
93425 lK bipolar RAMs. Both are fully decoded, l6-pin designs. The 2115 has open-collector outputs while the 2125 has three-state
outputs.
The fami~y was introduced in two speed
grades and a low power version. The -2 devices
have a maximum access time of 70 ns while the
non-dash memories have access time of 95 ns.
The 2ll5L and 2l25L have a maximum current of
65 rnA with an access time of 95 ns. Prices
begin at $12.75 for plastic DIPs in 100 quantities.

Citing that Fairchild developed its F-8
microprocessor technology from confidential
information obtained from a former employee,
General Instrument Corp. filed suit against
Fairchild Camera & Instrument Corp. last month.
The suit seeks a permanent injunction
against Fairchild's production and sale of
the F-8 microprocessor, as well as compensatory and punitive damages.
In its complaint, GI claims that in 1973
Fairchild hired David Chung, former GI manager
of microprocessor development programs, who
at that time was working on an 8-bit microprocessor system that G1 alleges ~as the
source of the F-8. After joining Fairchild,
Chung spearheaded its F-8 development progral!! .

CHESAPEAKE MICROCOMPUTER CLUB
J'ohn R. Gilchrist of Micro Processors Unlimited and Philip N. Hisley have announced
the formation of a new microcomputer club in
the Washington D.C.-Baltimore area. The
Chesapeake Microcomputer Club has its first
meeting in December with over 100 enthusiasts
crowding the halls. The club meets every second Wednesday of each month. (301) 667-9690

ONE DAY MICROPROCESSOR COURSE
A one-day short course in microprocessors
will be offered by the IEEE on 'Saturday, March
27, 1976. The session,which will run from
9:00AM to 4:30PM, will be held at the Mecca

PO BOX 1167, CUPERTINO, CA 95014 •

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$~8.00 ~er ye~r, overseas $40.00 per year. DARREll D. CROW, Editor; LI lLlAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
Exposition Convention Center, Milwaukee WI.
The course will present an overview of microprocessor basic organizations, programming
characteristics and hardware availability.
Emphaiss will be on application in industrial
control of data acquisition situations.
The registration fees for IEEE members is
$65, IEEE student members is $3C and $75 for
non-members. For additional information or
registration forms, write: Educational Registrar, IEEE, 445 Hoes Lane, Piscataway NJ 08854.

PEOPLE ON THE MOVE
NORMAN GRANNIS, vice-president and general
manager of American Microsystems' Standard
Product division has been named corporate
vice-president of systems engineering, concentrating on MOS applications for new electronic systems. GEORGE AVERY, vice-president
and general manager of AMI's Custom Products
division, will now head both the Custom and
Standard Product divisions.
ANDREW ALLISON has joined Advanced Micro
Devices as MOS microprocessor marketing manager, a new post. Allison was formerly the
ROM/PROM marketing manager for Fairchild.
DYNAMIC MEASUREMENTS has franchised Semiconductor Specialists to handle their line of
microcomputer power supplies in 11 locations
in the mid-U.S. while signing agreements with
Harvey Electronics for distribution at five
locations in the Northeast.
Fairchild Camera & Instrument Corp. has announced the formation of a new Microsystems
Division. The new group, headed by DAVID L.
HAHN, former general manager of the Communications Equipment Unit, will have the responsibility for all of Fairchild's microprocessor and microcomputer activities.
Fairchild has also announced several key
executive assignments and a restructuring of
its semiconductor products organization:
GEORGE D. WELLS has been named vice president and general manager of the Domestic Components Group, consolidating divisions dedicated to semiconductor components and logic
devices.
THOMAS A. LONGO has been appointed vicepresident and chief technical officer of the
corporation. Dr. Longo previously was vicepresident and general manager of the Memory

cI~;

PO BOX 1167, CUPERTINO, CA 95014 •

Volume 2, Number 8 I February, 1976
and Logic Group. He will now be responsible
for all research and development programs of
the company, including the central laboratory,
and for technical liaison among its various
divisions.
WILLIAM D. BAKER has left Monolithic Memories to become the new group director of
microprocessor operations at National Semiconductor.
JAMES MORETON has joined Monolithic Memories Microcomputer Group and will head the
firm's effort in microcomputer and small systems that are software-compatible with Data
General's Nova series minicomputer.
NEC MICROCOMPUTER, INC. has franchised Harvey Electronics to distribute their microprocessor and memory products in Lexington; Norwald CT; Woodbury NY and Fairfield NJ. Harvey also handles the Fairchild, Motorola,
National, Harris, and Intersil line of microprocessors.
NEC also appointed GEORGE M. WOLFE & ASSOC;
to cover sales in the Carolinas.
DONALD A. MITCHELL has been named president
and chief operating officer of Plessey, Inc.,
U.S. subsidiary of the English firm. Mitchell
is the former president of Rockwell International's Microelectronics group.
PRO-LOG CORP. has changed their address to
2411 Garden Rd. in Monterey CA.
MICROCOMPUTER ASSOCIATES INC. has relocated to 2589 Scott Blvd., Santa Clara CA.
ROBERT V. KNOX has been appointed vicepresident of engineering of the Microelectronic Device division of Rockwell International.
After announcing that 1975 saw the shipment
of their 1,000,000th microcomputer system,
the 'Microelectronic Device Division announced
the appointment of ROBERT BROWNING to the new
post of manager, OEM System Marketing. He
will be responsible for expansion of the division's sales of MOS/LSI systems and subsystems as board assemblies.
LARRY HOBBS has been appointed the National Semiconductor product manager at Bell Industries for the San Francisco Bay Area.
Hobb's responsibility includes the entire
National microprocessor line as weli as related products.

(408) 247·8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LILLIAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

MICROPROCESSOR STUDY
EDN is offering their second annual Microprocessor Study.
According to EDN, the $400 report discusses
the market potential of microprocessors and
related peripherals for the next few years.
The study culminates $20,000 and seven months
of intensive research by the publishing company.

RECENT LITERATURE
A rather large number of magazine articles
in the past 60 days have concentrated on microprocessors/microcomputers. Rather than
just review a few, we have decided to list
them.
Advanced Architecture and Applications of
Microcomputers. Fred F. Coury, Ken Roghmuller, Barry R. Borgerson, Peter W. J. Verhofstadt, Terry Podendyk, Robert O. Winder, Ann
R. Ward. Computer January 1976, page 16.
Bringing Up the PACE ~P--A Detailed Application Story. James L. Tallman. EDN January 20,1976, page 51.
Designer's Guide to Semiconductor Memories
--Part 10. Robert J. Frankenberg. EDN January 20, 1976, page 65.
Modem Uses a Custom-Designed Rather Than
Standard Microprocessor. Takashi Mitsutomi.
Modern Data January 1976, page 31.
Removable Disk Cartridge Drive--Where It's
Come From and Where It's Going. Dan M. Bowers
Modern Data January 1976, page 36.
Experts Tell How To Hold Down High Cost of
Processor Programs. Jim Mc Dermott. Electronic Design 26 December 20, 1976, page 20.
Employ ~P Software Tools Properly. David
C. Wyland. Electronic Design 26 December
20, 1975, page 50.
Assembly Language for ~Ps. Seymour Levine
Electronic Design 26 December 20, 1975, page
58.

Let a ~P Keep Track of Your Process. John
Kaufmann. Electronic Design 26 December 20,
1975, page 66.
PO BOX 1167, CUPERTINO, CA 95014 •

Volume 2, Number 81 February, 1976
Test A/D Converters Digitally by Use of a
Microprocessor or Minicomputer and a Simple
BASIC Program. Bill Pratt. Electronic Design 25, December 6, 1975, page 86.
Where Are High-Level Languages Headed?
3 Specialists in Industry Give Views. Phil
Roybal, Scott McPhillips, Paul Rosenfeld.
Electronic Design 25 December 6, 1975, page
47.

The PLA: A Different Kind of ROM. Albert
Hemel. Electronic Design 1 January 5, 1976,
page 78.
All About Microcomputers. Jules H. Gilder
Computer Decisions December 1975, page 44.
Control Users Speak Out on Microprocessors.
E. J. Kompass. Control Engineering December
1975, page 35.
Microcomputer Control: New LSI Chips Make
it Practical. S. J. Bailey. Control Engineering Decmeber 1975, page 28.
A Microprocessor-Controlled Printer. H.
R. Gillette. Modern Data December 1975,
page 32
Do-It-Yourself PROM Programming Simplifies
Development Systems. Richard Rosner. EDN
January 5, 1976, page 33.
~P

When It Comes to Floppys, There Is Much to
Know Before You Buy. Woody Floyd. EDN January 5, 1976, page 18.
Just Getting into Microprocessors? Odds
Are You'll End up With a Kit. Edward A. Torrero. Electronic Design 1 January 5, 1976
Incorporate a Calculator Chip, Instead of
a Microprocessor. Kurt Skytte. Electronic
Design 1 January 5, 1976, page 96.
Base Your IC Tester on a ~P. Jeffrey C.
Rise. Electronic Design 1, January 5, 1976,
page 88.
Evolution of Microprogrammed Input/Output
Processing in One Processor Family. Richard
Vahistrom, Max Malone. . Computer Design, January 1976, page 98.
Two New Approaches Simplify Testing of Microprocessors. Albert C. L. Chiang, Rick
McCaskill. Electronics January 22, 1976.

(408) 247-8940

MICROCOMPUTER DIGEST

Volume 2, Number 8 / February, 1976

EDUCATION:

8- 9

MICROCOMPUTER COURSES, SEMINARS, CONFERENCES.
Date, title, cost, location, sponsoring organization

Survey & Application of Microprocessors
$300 Chicago IL Yourdo~, Inc.

8-10

IECI 76 Conference of Industrial Applications of Microprocessors, Process
Measurement, and Failure Mode Analysis
Philadelphia PA IEEE

8-10

Microprocessors and Microcomputers
$485 New York NY Institute for Science & Public Affairs

8-11

MCS-80/ICE-80 $350 Boston MA and
Santa Clara CA Intel Corp.

March
1

Microcomputer Profile $165 Los Angeles
CA Technology Service Corp.

State of Art in Current Microcomputer
Technology $165 Los Angeles CA Technology Service Corp.

1- 5

Microcomputer Congresses--Intensive
Short Courses $220-$395 Boston MA
Integrated Computer Systems, Inc.

8-12

Microcomputer Congresses--InTensive
Short Courses $220-$395 New York NY
Integrated Computer Systems, Inc.

2- 4

Microprocessors & LSI in Telecommunications and Applications $495 Ch.icago
IL Integrated Computer Systems, Inc.

Microcomputer Profile $165 New Carrollton MD Technology Service Corp.

Microcomputer Profile $165 Chigaco
IL Technology Service Corp.

State of Art in Current Microcomputer
Technology $165 Washington, D.C.
Technology Service Corp .

PROM Programming--A Systems Approach
Free San Jose CA Data I/O Corp.

9-11

Compdesign/76
puter Design

State of Art in Current Microcomputer
Technology $165 Chicago IL Technology Service Corp.

Software Development Techniques for
rvTicY'ocomputers Chicago IL Integrated
Computer Sy.s.tems, Inc.

4- 6

ACM Conference on Programming Micro/
Minicomputers New Orleans LA Bell
Telephone Laboratories

Microcomputer Profile $165 Ottawa
Ontario Technology Service Corp.

State of Art in Current Microcomputer
Technology $165 Ottawa Ontario Technology Service Corp.

Basic Microcomputer Theory $40 Dallas
TX Microcomputer Training Labs

Microcomputer Profile $165
MA Technology Service Corp.

State of Art in Current Micrcomputer
Technology $165 Boston MA Technology Service Corp.

8- 9

Intel Microprocessors
CA Elmar Electronics

cI~;

$225

Boston

Mt. View

PO BOX 1167, CUPERTINO, CA 95014 •

$120

New York NY

Com-

Basic Microcomputer Theory $40 K2nsas
City KS Microcomputer Training Labs

Microcomputer Profile $165
Technology Service Corp.

Basic Microcomputer Theory $40 St.
Louis MO Microcomputer Training Labs

12-13

Microcomputer Interfacing Workshop
$175 Reston VA Departments of Chemical Engineering and Chemistry VPI
and SU

12-l3

Microcomputer Interfacing Workshop
Blacksburg VA American Chemical Society

13-15

Microprocessors and LSI Telecommunications Applications $495 San Francisco CA Integrated Computer Systems, Inc.

14-19

Microprocessors and Minicomputers-Interfacing and Applications Blacksburg VA American Chemical Society

Adhesives for Industry Conference $165
San Diego CA Technology Service Corp.

Intel S.B.L. Microcomputer $125
Alto CA Elmar Electronics

Dallas TX

Palo

(4081247·8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LI LLiAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
15

Microcomputer Profile $165 San Diego
CA Technology Service Corp.

15-18

MCS-80/ICE-80
Corp.

15-26

LSI-ll & PDP-ll/03 Hardware and Interfacing $7~0 Maynard MA Digital
Equipment Corp.

16-18

Hands-On Microprocessor Workshop
San Diego CA Wintek Corp.

15-17

3000 Bipolar Microcomputer Course $350
Santa Clara CA Intel Corp.

Intel S.B.C. Microprocessor
ver CO Elmar Electronics

21-26

Digital Electronics for Automation and
Instrumentation Blacksburg VA American Chemical Society

Basic Microcomputer rheory $40 Chicago IL Microcomuter Training Labs

22-24

3000 Bipolar Microcomputer Course $350
Boston MA Intel Corp.

22-24

Motorola 6800
Electronics

$375

Mt. Veiw CA Elmar

22-25

MCS-80/ICE-80
Intel Corp.

$350

Santa Clara CA

23-26

Microcomputer Congresses--Intensive
Short Courses $220-$395 Boston MA
Integrated Computer Systems~ Inc.

$350

Boston MA

$495

Software Development Techniques for
Microcomputers Washington, D.C. Integrated Computer Systems, Inc.

3- 4

Laboratory Automation: Micro-, Mini-,
or Midicomputers? Chicago IL American Chemical Society

Basic Microcomputer Theory $40
FL Microcomputer Training Labs

5- 6

Survey and Application of Microprocessors $300 San Francisco CA Yourdon
Inc.

5- 7

Hands-On Microprocessor Workshop
Austria Wintek Corp.

5- 8

HCS-80/ICE-80 $350 Boston MA and
Santa Clara CA Intel Corp.

5- 9

Microprocessors & Microcomputers: Theory and Applications $425 Washington
D.C. The George Washington University

6- 8

Microprocessors and LSI Telecommunications and Applications $495 Dallas
TX Integrated Computer Systems, Inc.

Basic Microcomputer Training Labs $40
Atlanta GA Microcomputer Training Labs

PROM Programming--A Systems Approach
Free San Jose CA Data I/O Corp.

Software Development Techniques for
Microcomptuers Dallas TX Integrated
Computer Systems, Inc.

Basic J:1icrocomputer Training Labs $40
Raleigh NC Microcomputer Training Labs

$125 Den-

Microcomputer System Hardware $125
Mt. View CA Elmar Electronics

Advanced Microprocessor Programming
$125 Mt. View CA Elmar Electronics

29-30

Intel Memories $225
Elmar Electronics

31- 1

Microprocessors and LSI in Telecommunications Applications $495 Washington
D.C. Integrated Computer Systems, Inc.

Palo Alto CA

Hands-On Microprocessor Workshop
Florida Wintek Corp.

Microprocessors and LSI in Telecommunications Applications $495 Chicago IL
Integrated Computer Systems, Inc.

April

2650 Intensive Design and Applications
$11-25 Chicago IL Microcomputer Training Labs

31- 2

Intel

24-26

31-

Volume 2, Number 8/ February, 1976

$495

12-14

MOS/LSI Logic Design Techniques $320
Washington, D.C. George Washington
University

12-14

PL/M

12-16

Microcomputer Congresses--Intensive
Short Courses $220-$395 Chicago IL
Integrated Comput-er Systems, Inc.

$495

PO BOX 1167, CUPERTINO, CA 95014 •

Tampa

$350

Santa Clara CA

Intel

Cor~

(408) 247-8940

MICROCOMPUTER DIGEST

Volume 2, Number 8 I Februa"ry, 1976

12-23

LSI-II & PDP-ll/03 Hardware and Interfacing $750 Maynard MA Digital
Equipment Corp.

George Washington University, Director, Continuing Engineering Education, Washington DC,
20052 (202) 676-6106

13-14

Microprocessors and LSI Telecommunications and Applications $425 San Francisco CA Integrated Computer Systems,
Inc.

IEEE, 5855 Naples Plaza, Suite 301, LongBeach
CA 90803 (213) 438-9951

13-15

Compdesign/76 $120 Chicago IL
puter Design Magazine

Com-

Software Development Techniques for
Microcomputers San Francisco CA Integrated Computer Systems, Inc.

19-21

3000 Bipolar Microcomputer Course $350
Santa Clara CA Intel Corp.

19-22

MCS-80/ICE-80 $350 Boston MA and
Santa Clara CA Intel Corp.

19-30

LSI-II & PDP-ll/03 Hardware and Interfacing $750 Sunnyvale CA Digital
Equipment Corp.

Institute for Science & Public Affairs, 6003
Executive Blvd., Rockville MD 20852 (301)
770-8576
Integrated Computer Systems Inc., 4445 Overland Ave., Culver City CA 90230 (213) 5599265
Intel Corp., Microcomputer Systems Training,
3065 Bowers Ave., Santa Clara CA 95051 (408)
246-7501
Microcomputer Training Labs, 100 N Winchester
Blvd., Suite 260, Santa Clara CA (408) 2448695
Motorola, P.O. Box 2953, Phoenix AZ 85062
(602) 962-2345

20-23

Microcomputer Congress--Intensive
Short Course $220-$395 Washington,
D.C. Integrated Computer Systems, In~

Technology Service" Corp., Rob Bowers, 2811
Wilshire Blvd., Santa Monica CA 90403 (213)
829-7411

26-28

MCS-4/40
Corp.

Wintek Corp., 902 N 9th St, Lafayette IN
47904 (317) 742-6802

27-30

Microcomputer Congress--Intensive
Short Course $220-$395 Chicago IL
Integrated Computer Systems,Inc.

$350

Santa Clara CA

Intel

Yourdon Inc., 1133 Ave of the Americas, New
York NY 10036 (212) 575-0572

FINANCIAL:

SPONSORING ORGANIZATIONS AND CONTACTS
American Chemical Society, Educational Activities Division, 1155 16th St NW, Washington
DC 20036
Bell Telephone Laboratories, Lawrence J.
Schutte, Rm 6B-302, Naperville IL 60540 (312)
690-2000
Computer Design Magazine, Compdesign/76 Registration, 797 Washington St, Newton MA 02160
Data I/O Corp., 990 E. Arques, Sunnyvale CA
94086 (408) 732-8246
Digital Equipment Corp., Educational Services
Dept., 146 Mail St, Maynard MA 01754 (617)
897-5111
Elmar Electronics, 2288 G Charleston Rd., Mt.
View CA 94040 (415) 961-2611

PO BOX 1167, CUPERTINO, CA 95014 •

EARNINGS
Adv. Memory Systems
Dec. 26
Share Earnings
Earnings
Sales
Adv. Micro Devices
Dec. 28
Share Earnings
Earnings
Sales
9 Months
Share Earnings
Earnings
Sales

1976

1975

$.46
1,160K
9,667K

$.12
306K
7,503K

1976

1975

$.15
397K
8,908K

-403K
6,045K

+198.5
+47.4

$.29
765K
23,751K

-2,484K
19,377K

+130.8
+22.6

%
+283.3
+279.1
+28.8

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LILLIAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
Amer. Microsystems
Jan. 3
Share Earnings
Earnings
Sales
Year
Share Earnings
Earnings
Sales
DEC

1976

Electronic Arrays
Dec. 31
Share Earnings
Earnings
Sales
9 Months
Share Earnings
Earnings
Sales
Fairchild C & I
Dec. 28
Share Earnings
Earnings
Sales
Year
Share Earngins
Earnings
'Sales
General Instrument
Nov. 30
Share Earnings
Earnings
Sales
9 Months
Share Earnings
Earnings
Sales

Harris Corp.

-1,071K
17,426K

$.19
416K -357.5
-18,365K
-5.1

-610K
66,070K

$1.64
3,660K -116.7
75,324K -12.3

1976

Dec. 27
Share Earnings
Earnings
Sales
6 Months
Share Earnings
Earnings
Sales

1975

$.81
9,763K
126,837K

+66.7
+66.7
+31.1

$2.30
27,664K
313,059K

$1.44
17,251K
238,590K

+59.7
+60.4
+31.2

1976

1975

$.01
16,000
4,220K

$.01
23,000
3,327K

-30.4
+26.8

$.14
252K
11,754K

$.52
893K
12,781K

-73.1
-71.8
-8.0

1976

1975

$.21
1,165K
81,368K

$.79
4,129K
78.891K

-73.4
-71.8

$2.41
13,073K
291,542K

$5.00
27,032K
384,933K

-51.8
-51.6
-24.3

1975

Dec. 31
Share Earnings
Earnings
Sales
Year
Share Earnings
Earngins
Sales
Mostek Corp.
Dec. 31
Share Earnings
Earnings
Sales
Year
Share Earnings
Earnings
Sales
Motorola

Dec. 31
Share Earnings
Earnings
Sales
Year
Share Earnings
Earnings
Sales
Nat'l Semiconductor

$.25
2,164K
163,508K

$.56
4,410K
106,398K

-55.4
-50.9
-2.7

$.49
4,664K
288,913K

$1.52
12,018K
332,956K

-67.8
-61.2
-13.2

PO BOX 1167, CUPERTINO, CA 95014 •

Dec. 31
Share Earnings
Earnings
Sales
6 Months
Share Earnings
Earnings
Sales
Intel Corp.

$1.35
16,274K
172,601K

1976

Volume 2, Number 8 I February, 1976

Dec. 14
Share Earnings
Earnings
Sales
6 Months
Share Earnings
Earnings
Sales

1976

1975

$1.08
6,565K
125,314K

-12,211K
121,496K

+153.8
+3.1

$2.05
12,416K
243,974K

$1.62
8,490K
228,625K

+26.5
+46.2
+6.7

1976

1975

$.66
4,599K
40,253K

$.44
2,997K
31,284K

+50.0
+53.5
+28.7

$2.35
16,274K
136.788K

$2.96
19,776K
134,456K

-20.6
-17.7
+1.7

1976

1975

$.02
62K
3,723K

$.05
211K
3,949K

-60.0
-70.6
-5.7

-1,238K
47,119K

$.98
3,894K
60,060K

-131.8
-21.5

1976

1975

$.43
12,140K
356,006K

$.15
4,199K
325,210K

+186.7
+189.1
+9.5

$1.46
41,127K
1,311M

$2.52
70,728K
1,367M

-42.1
+41.9
-4.1

1976

1975

$.43
5,659K
79,894K

$.32
3,827K
55,061K

+34.4
+47.9
+45.1

$.83
10,900K
162,280K

$.77
9,333K
130,181K

+7.8
+16.8
+24.7

(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARREll D. CROW, Editor; LILLIAN lAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY lEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST
Plessey Co.

1976

Dec. 31
Share Earnings
Earnings
Sales
9 Months
Share Earnings
Earnings
Sales
RCA Corp.

Texas Instruments
Dec. 31
Share Earngins
Earnings
Sales
Year
Share Earnings
Earnings
Sales

$.42
7,900K
252,000K

$.53
10,000K
219,200K

-20.8
-21.0
+15.0

$1.34
25,100K
696,900K

$1.71
32,000K
642,200K

-21.6
-21.6
+8.5

1976

Dec. 31
Share Earnings
Earnings
Sales
Year
Share Earnings
Earngins
Sales

1975

$.43
33,400K
1,339M
$1.40
110,000K
4,804M
1976

1975

$.21 +104.8
16,600K +101.2
1,218M
+9.9
$1.45
113,300K
4,626M

-3.4
-2.9
+3.8

1975

$.91
20,783K
390,942K

$.92
21,092K
418,705K

-1.1
-1.5
-6.6

$2.71
62,142K
1,367M

$3.92
89,621K
1,572M

-30.9
-30.6
-13.0

Advanced Micro Devices, Inc, 901 Thompson PI,
Sunnyvale CA 94086 (408) 732-2400

Volume 2, Number 8 I February, 1976
CDI, Westlake Village CA 91360
Chesapeake Microcomputer Club, 236 St David
Ct, Cockeysville MD 21030 (301) 667-9690
Computer Transmission Corp, 2352 Utah Ave,
El Segundo CA 90245 (213) 973-2222
Cramer Electronics, 85 Wells Ave, Newton MA
02159 (617) 969-7700
C-Tek, Inc, 4 Railroad Ave, Wakefield MA
01880 (617) 246-1720
Data Translation Inc, 109G Concord St, Framingham MA 01701 (617) 879-3595
Data Works Instrumentation, 9748 Cozycroft
Ave, Chatsworth CA 91311 (213) 998-8985
Datel Microelectronics, Division of Datel
Systems, Inc, 1020 Turnpike St, Canton MA
02021 (617) 828-8000
Digital Equipment Corp, One Iron Way, Marlboro MA 01752 (617) 897-5111
Digital Laboratories, 377 Putnam Ave, Cambridge MA 02139 (617) 876-6220
EDN Magazine, Cahners Publishing Co, 205 E
42nd St, New York NY 10017 (212) 689-3250
Essex International Semiconductor Group, 564
Alpha Dr, Pittsburgh PA 15238 (412) 782-0200
Extel Corp, 310 Anthony Trail, Northbrook IL
60062 (312) 564-2600
Fairchild Camera & Instrument, 464 Ellis St,
Mt View CA 94040 (415) 962-5011
FBE, Seattle WA 98100

AES Data, Ltd, 570 McCaffrey St, Montreal Que
Canada N4T INI (514) 739-2711

First Data Corp, Waltham MA 02154
890-6701

Allied Leisure Products, Hialeah FL 33000
(305) 558-5200

Forth Inc, Manhattan Beach CA 90266
372-8493

Applied Data Communications, 1509 E McFadden
Ave, Santa Ana CA 92705 (714) 547-6954

General Computer/Systems Inc, Addison TX 75001
(214) 233-5800

Automated Computer Systems, 2361 E Foothill
.Blvd, Pasadena CA 91107 (213) 792-1193

General Instrument Corp, Microelectronics,
600 W John St, Hicksville NY 11802 (516)
733-3000

Boschert Associates, 1031 E Duane, Suite C,
Sunnyvale CA 94086 (408) 732-2441
Cambion Division, Cambridge Thermonie Corp,
445 Concord Ave, Cambridge MA 02138 (617)
491-5400

PO BOX 1167, CUPERTINO, CA 95014 •

(617)
(213)

Intel Corp, 3065 Bowers Ave, Santa Clara CA
95051 (408) 246-7501
Interface Technology, 852'N Cummings Rd, Covina CA 91724 (213) 966-1718
(408) 247-8940

Copyright © 1976 by Microcomputer Associates Inc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LI LLiAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

MICROCOMPUTER DIGEST

Volume 2, Number 8/ February, 1976

Intermetrics, 701 Conpord Ave, Cambridge MA
02138 (617) 661-1840

PAPER TAPE
DUPLICATING

Intersil, 10900 N Tantau Ave, Cupertino CA
95014 (408) 257-5450

Let us do your paper tape duplicating for you. Computer controlled duplication and verification of 8
channel fan fold paper tape. Fast turnaround,
guaranteed accuracy and low cost. Free pickup and
delivery for large orders. Call us about any paper
tape punching requirements. Also paper tape to
cards.

Logic Systems, 437-A Aldo Ave, Santa Clara CA
95050 (408) 244-2412
MI2 Data Systems, 930 Kinnear, Columbus OH
43200 (614) 481-8881
Microcomputer Associates Inc, 2589 Scott Blvd,
Santa Clara CA 95050 (408) 247-8940

SHEPARDSON MICROSYSTEMS
10601 S. Saratoga/Sunnyvale Rd., Suite 302, Cupertino, Ca. 95014

Micro Systems Software, 355 W Olive, Sunnyvale CA 94086 (408) 735-1650

(408) 257-2996

Mostek Corp, 1215 W Crosby Rd, Carrollton TX
75006 (214) 242-0444
MSI Data Corp, 340 Fischer Ave, Costa Mesa CA
92627 (714) 549-6000
National Semiconductor Corp, 2900 Semiconductor Dr, Santa Clara CA 95051 (408) 732-5000

MICROCOMPUTER CONCEPTS, INC.
Custom hardware and software development for
PACE, IMP016, SCAMP, 6800
10683 Cranks Rd.
(213) 836-2271
90230
Culver City, California

* * * MICROPROCESSOR DESIGN * * *
SUPPORT
We specialize in transforming your microprocessor design into operating hardware.
Particular emphasis on high density CPU
circuit board design. We also provide complete package design and drafting support.

NEC Microcomputers, Inc, 5 Militia Dr, Lexington MA 02173 (617) 862-6410
Processor Applications, Ltd, 2801 E Valley
View Ave, West Covina CA 91792 (213) 965-8865
Rockwell International, 3370 Miraloma Ave,
Anaheim CA 92803 (213) 647-5000

For further information write:

Siemens Corp, 3 Computer Dr, Cherry Hill NJ
08002 (609) 424-2400

Contemporary Designs, 370 Rose St., Danville, Ca. 94526
or Call: (415) 837-3778

Sycor Inc, 100 Phoenix Dr, Ann Arbor MI 48104
(313) 971-0900
Tenney Engineering, Inc, 1090 Springfield Rd,
Union NJ 07083 (201) 686-7870
Texas Instruments, PO Box 5012, Dallas TX
75222 (214) 238-2011

Is This YOUR COpy of
MICROCOMPUTER DIGEST?
If not, make sure you receive your own regular copy each month by
subscribing today.

Yes! Start sending me MICROCOMPUTER DIGEST every
month.

University Computing Co, 7200 Stemmons Freeway, Dallas TX 75247 (214) 637-5010

o
o

Wintek Corp, 902 N 9th St, Lafayette IN 47904
(317) 742-6802

1 year @ $28 (for overseas, add $12)
Bill my company.
0 Bill me.
Payment enclosed.
Subscription Renewal

Name

Wyle Computer Products, Wyle Laboratories,
3200 Margruder Blvd, Hampton VA 23666 (804)
838-0,122

Title

Company
Address

Software Consultant - Intel 8080 Specialist L.
Jo h n Postas (408) 244-3381.

eliI;

PO BOX 1167, CUPERTINO, CA 95014 •

City /State/Zip
Business Phone (

(408) 247-8940

Copyright © 1976 by Microcomputer Associates I nc., All Rights Reserved. M.R. Lemas, President. Published monthly. Subscription
$28.00 per year, overseas $40.00 per year. DARRELL D. CROW, Editor; LILLIAN LAU, Associate Editor; PATRICIA L. DREISBACH,
Circulation Editor; RAY HOLT, Applications Technical Advisor; MANNY LEMAS, Applications Technical Advisor.

CALL

ELMAR ELECTRONICS

WYLE DlSlRIBUTION GROUP
2288 Charleston Road • Mt. View, CA 94040
Phone: (415) 961-3611 • TWX: 910-379-6437

THE LOWEST-COST COMPUTER
SYSTEM SOLUTION FOR
OEM APPLICATIONS
WIT H CPU, M E M 0 R Y,
PROGRAMMABLE SERIAL
AND PAR ALL E L I/O .... ALL 0 N A

SINGLE
printed circuit board
VISIT
OR
CALL
BILL SCHARRENBERG
FOR APPLICATIONS INFORMATION
AT THE FULL CAPABILITY CENTER
OF

WYLE DlSlRIBUTION GROUP
ELMAR ELECTRONICS
Mountain View, California
(415) 961-3611

ELMAR ELECTRONICS/ARIZONA
Phoenix, Arizona
(602) 257-1272

Bulk Rate
Permit No. 243
Cupertino, CA
95014

MIGBBCOMPUTER
IOtST
PO BOX 1167, CUPERTINO, CA 95014 •

(408) 247-8940

------------------------------------t
,

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MICROCOMPUTER

CARD

:
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t
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THAT MAKES SENSE
~\)~

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