Computer Components

MITS Altair 8800 Disk Controller Boards

These are two vintage circuit boards, specifically revisions 2.4 (green) and C.2 (tan), manufactured by MITS Inc. for controlling disk drives with the Altair 8800 microcomputer.

Wire-Wrap Digital Prototype Expansion Card

This is a custom-built circuit board, commonly known as a wire-wrap prototype expansion card, designed for developing and testing digital logic circuits to be plugged into a system backplane via its gold-plated edge connector.

MITS Altair 88-2 SIO Board

This is a Serial Input/Output (SIO) board, revision D, manufactured by MITS for use with the Altair 8800 series of microcomputers, providing serial communication capabilities.

MITS 4K Static RAM Board Rev 2

This is an early computer memory expansion board manufactured by MITS, providing 4 kilobytes of static random-access memory for compatible systems like the Altair 8800.

MITS 4K RAM Board

An early dynamic RAM expansion card designed for the MITS Altair 8800 microcomputer, prominently featuring NEC UPD411D 4K DRAM chips.

Altair 8800 1K Static Memory Board

This is an early revision (Rev 0) 1-kilobyte static RAM expansion board designed for the Altair 8800 microcomputer, featuring Intel 2101 static RAM chips and TTL logic, compatible with the S-100 bus.

MITS Altair 8800 CPU Board Revision 1

This is the central processing unit board for the MITS Altair 8800, one of the first personal computers, featuring an Intel C8080A microprocessor.