MCM/900
Subseries
· 1978-1979
· ca-yucom-mcm-01-mcm900
Description
Repository
York University Computer Museum
Date
1978-1979
Reference code
ca-yucom-mcm-01-mcm900
Access conditions
Reproduction conditions
Notes
Notes
The MCM/900 (or the MCM System 900) was MCM's third generation computer. As its MCM/70 and MCM/800 predecessors, the /900 was an APL computer with the MCM/APL interpreter stored in ROM. It also functioned under the same (but updated) AVS/EASY operating system. The computer's main architect was Andre Arpin.
The computer was announced in September 1978 as an affordable, complete, stand alone computer system for interactive applications in science, business, and education: "If you spent more than $500 for a month for APL time-share [...] you should own an MCM System 900." In 1978, the computer was sold for between $9,300 and $25,000, depending on configuration. The MCM/900 was a popular and reliable computer provided with software libraries developed by third-part publishers.
Control
Date of description
This description was last updated on 2026-05-09.