RAIR Business Computer

In the early 1980s, many established businesses wanted to get into the business computer market. The fastest way to do that was to contract with an original equipment manufacturer (OEM) to brand its designs as their own.

RAIR Business Computer
Source: RAIR Computer, 1983

RAIR Computer was one of the lesser known OEMs. Its Business Computer was typical of the multi-user, multi-processor designs of the day. The processors were an 8-bit 8085 and a 16-bit 8088.

RAIR Business Computer
Source: RAIR Computer, 1983

A selection of operating systems (MP/M, CP/M, or PC-DOS) gave its OEM customers flexibility, as the Business Computer could be sold in single- or multi-user configurations. A high-resolution color display and the ability to daisy-chain up to four additional Winchester drives were also big selling factors.

Introduced: October 1983
Original OEM price: $9,750
Base Configuration: 8085 and 8088 CPUs, 256K RAM (1MB max), 19MB hard drive, 1MB floppy drive, 4 RS-422 and 2 RS-232 ports, color monitor, 83-key keyboard, printer, CP/M-80/86 and MP/M-80/86, BASIC, COBOL, Pascal, business software suite
Video: 80 characters x 25 lines, 8 colors
Important options: up to 4 additional 19MB hard drives, tape backup, PC-DOS

Published by

Michael Nadeau

I am the author of Collectible Microcomputers (Schiffer Books, 2002) and have been an editor of many technology publications including BYTE, 80 Micro, and HOT CoCo. My interest in the history of information technology is broad. I use my blogs, ClassicTech and Vintage Computer Photos, to build on the work I did for Collectible Microcomputers.

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