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"The standard of excellence in microcomputers since 1975"
Hit Counter   Copyright 1999-2013 Thomas "Todd" Fischer    All rights reserved worldwide 
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IMSAI Support and Resource Links

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Replacement Parts: Switches, handles, front panel components, sheet metal, and more...
 

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IMSAI System Specifications
 

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IMSAI 8080 production changes
 

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IEEE-696 S-100 Bus Standard (1 MB Adobe PDF file)
 

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IMSAI CPA Programmers Front Panel Functional Description (31 kb Adobe PDF file)
 

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IMSAI CPA Programmers Front Panel Compatibility Modifications (21K Adobe PDF file)
 

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IMSAI VIO Firmware Monitor Source and Support Files (205KB ZIP File)
 

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The IMSAI SCS (Self-Contained System) source code and manual (My thanks to Barry Watzman for getting the format together, and the folks on the comp.os.cpm newsgroup for making this happen!) SCS-1 Manual.pdf (531 Kb.), and SCS1.ASM (49 Kb.)
 

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Barry Watzman has again come through with yet another terrific effort .  Here are links to ALS8ALL.ASM and ALS8MANUAL.ASM, enhanced and advanced "Self-contained System" that include debug, memory content, and I/O control capabilities for users working at the system level for 8-bit micro users.
 

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Logic Specifications for obsolete devices used in IMSAI designs
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Intel 8080 Microprocessor (374 kb Adobe PDF file)

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AMD/Intel 8212 Port chip (203 kb Adobe PDF file)

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*Intel 8080 Microcomputer Systems User's Manual-
Part 1 (1109 KB Adobe PDF file) NOTE: The front cover scan image has been removed in an effort to make the download compatible with more browsers. 5-19-2004
Part 2
(2110 KB Adobe PDF file)
Part 3
(2048 KB Adobe PDF file)
Part 4
(1928 KB Adobe PDF file)

*(Includes device specifications for the following devices: )
8224 Clock Generator 5101 Static CMOS RAM (256 x 4)
8228 System Controller 8210 Dynamic RAM Driver
8080A Central Processor 8222 Dynamic RAM Refresh Controller
8080A-1 Central Processor (1.3 us.) 8212 8 Bit I/O Port
8080A-2 Central Processor (1.5 us.) 8255 Programmable Interface
M8080A Central Processor 8251 Programmable Communication Interface
8702A Erasable PROM (256 x 8) 8205 One of 8 Decoder
8708A/8704 Erasable PROM (1K x 8) 8214 Priority Interrupt Control Unit
8302 Mask ROM (1K x 8) 8216/8226 Bi-Directional Bus Driver
8316A Mask ROM (2K x 8) 8253 Programmable Interval Timer
8101-2 Static RAM (256 x 4) 8257 Programmable DMA Controller
8111-2 Static RAM (256 x 4) 8259 Programmable Interrupt Controller
8102-2 Static RAM (1K x 1) Packaging Information
8102A-4 Static RAM (1K x 1)  
8107B-4 Dynamic RAM (4K x 1)  

Compaticard Support
 
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The Compaticard IV manual (2268 KB PDF file)

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For setup information for the Compaticard IV, check out this link:  http://www.msd1.com/ddhelp/hcciv.htm

Some Processor Technology PDF files...
 
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Chess User's Manual

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DEBUG Advanced 8080 Debugger User's Manual

CP/M Support and archive links
 
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http://www.gaby.de/eoverv.htm One of the best resources for CP/M archived files and information. A significant resource for the comp.os.cpm newsgroup