The IMSAI machine ran a highly modified version of the CP/M operating system called IMDOS.
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In 1977, IMSAI marketing director Seymour I. Rubinstein paid Gary Kildall $25,000 for the right to run CP/M version 1.3, which eventually evolved into an operating system called IMDOS, on IMSAI 8080 computers.
IMDOS |