Undocumented S-100 boards List

June 25 2025, (c) Herb Johnson 2025

To email me, see see my ordering Web page for my email addresses.

This page lists vintage (20th century) manufacturers of S-100 boards for which I have no documentation, but I've seen photos or held a board. This page names almost 60 S-100 manufacturers not listed on my S-100 documentation list page. This page dates the model and production year (dates on chips or board) of whatever S-100 board I've seen. If you have documentation or information, please contact me. Check my S-100 documents page for a list of manufacturers that I have docs for, over 140 as of Feb 2025. I think my two lists account for more S-100 branded companies than any other Web site.

I have some images of some of these boards, but I don't own those photos, so they aren't shown here. Since I have no documentation by definition, a photo may be the only "doc" I can find. I won't distribute a photos if the owner of the photo objects.

To contact me about manuals, to get ordering and price information, follow this link.

Undocumented S-100 boards.

A. Szerlip TPS100B board - I/O card with many many transistors and resistors
ACOM Electronics 1980, P188 8080 CPU board
ADS, 1983, Octafloppy floppy controller
AI Cybernetic Systems, 1976 - model 1000 speech synthesizer 
Anchor Electronics, 1976? - CPA 8K memory, much like SSM MB6 or MB6A
A-PLUS Computer Corp, 1979? - 8085 with RAM, ROM, UART, parallel (same as CDS 8085 board)
BioTech Electronics, 1979, CGS-808-2, 8085 board with RAM ROM 6847 video
Bubbl-Tek (PC/M Inc), 1981, Pubbl-Pac MBB-100, TI bubble memory card
- 1981, MBC-100 Z80 CPU board
Cameo Electronics - "S100 Adaptor", 40-pin connector, undated, all TTL
CDS - 8-0024 Rev 1.0, 8085, printer port, aux port, ROM   (same as A-Plus 8085 bd)
CEPC - Model 6200 Serial 4, 4-port serial card, 6850's
Components Express - 1982, CODEX 64K static RAM, 4016's
Corvus Systems - 1980, S100 Rev B, tape floppy interface
Dahlgren Control Systems Inc, 1990, System 2 Z80 card
- a CNC controls manufacturer 
DataRam Labs Inc.
Destek, 1985, video board
Drytek Inc, Wilmington MA
-- S100-CPU part no 2800192 - Z80 CPU, CTC, RAM and ROM board
Duston - 8K RAM, 2102's
ELI (E&L Instruments) - "S100 card" with E&L breadboards.
(The) Engineering Lab Inc. - Speech Board, 1983. PCM chip
Extended Technology, 1983, 2000-A PROM burner  
Hudson and Assoc - Z support board - 1984 with RAM and empty 40-pin sockets
Hypertech Corp - Multi-digital I/O board, ten connectors for binary I/O
Illuminated technologies - RAM board, probably graphics
Inner Access Corporation 
-- 68K-P - 68000 CPU board with ROMs
-- ROM SIM 1A - RAM and external connectors
Intec 110-2 board - one DIP connector, lots of small chips
I.P.C, 1976, 8080 CPU card
JC INF SYS, 1984, JCL-80. unknown function
Kent-Moore Instruments, 1977, 32K SRAM
Lincoln Semiconductor, 1970's, CT-1, I/O card
Lomac, 1980?, LM-80, I/O board
LOGOS-1 rev A - 8K RAM board w/2102's
Malibu - Print board, other branded cards. They produced a Malibu printer too.
Meca, 1978 with 1984 ICs,  I/O card
MCT ASSY 105510 - serial card, two UARTs, also 50-pin parallel connector
Meta Information Applications INc, 1978, MIA-1 I/O board
-- 1976?, 6800? 6809? CPU single? board
Microbyte, M32KSS SRAM card
Micro Labs Inc. MLI - S-100 10 slot backplane
NSC? 1983. NSC 88-2 8085/8088 CPU + I/O. etc
NSSC 8303-0203-2 - Z80, ROM, RAM board
Objective Designs,  "the Crate" S-100 chassis.
Octagon, 1983, hard/floppy controller
Optical Specialties Inc., probably 1988. San Jose Calif. 
-- MV15 motor control, MV15 Interface, Processor, Focus. optical inspection semi's
Paratronics Inc. (Nicolet) model 150, 1977 - logic analyzer
Pelkey - RAM board from 1977
Quantronics MM-8 board - 8K RAM of 2102's, sold by/with Problem Solver Systems
Retro-Tek 1977, 88-110 Stepper Control
Speech Technology Corp. 1977, AW188 speech synth
-- 1981, 8085 based speech synth
Spy Pond Systems, 1988, AGA-2000 memory RAM
Strobe Inc, "S-100 parallel I/O card"
Tri-Mark Engineering, 1978, Knoxville TN. "8K ROM 8K RAM" 2708 21L02
UCI, 1985, EasyWin board, 8088 CPU (maybe for Z-100?)
VAMP Inc. - VTE 100a, "Exterminator" extender and terminator, rev 2 1978 build
Wire Graphics, 1979, specialized controller
Wizard Engineering, PSIOB I/O card
XYBEK, 1977, 'Prammer card 1702A programmer/reader
Yang Electronic Systems, 1982, YES-100 32K Static RAM
ZS Systems, 1979, DRAM card
ZS System - 1979 floppy controller w/1771 type FDC chip
"8K X 8 ARRAY 21L02" - actually 6K of 2102 sockets, and several wide ROM sockets

100 pin, but not S-100

Okuma OPUS 5000 - CNC automation products, boards, backplanes
- uses S-100 edge connector but NOT S-100 signals. power, ground all wrong! 
ISC Intelligent Systems Corporation, Intecolor 8000, Norcross GA USA late 1970's
- uses S-100 edge connector but NOT S-100 signals, connector NOT right position, board too narrow.
- see my Web page
- also bitsavers.org
- documented thx Jim Battles
Tektronix 8002 microprocessor system
- uses S-100 edge connector but NOT S-100 signals, connector NOT right position along edge. 
AlphaMicro is *almost* S-100, some signals vary, some cards are double-height. 

Copyright 2025 Herb Johnson
To email me, see see my ordering Web page for my email addresses.