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Intergalactic Digital Research
(Redirected from DR)
Intergalactic Digital Research, more commonly known simply as Digital Research was the company that made CP/M, the first ever Operating system that can run on a microcomputer. It also made other , less-known operating-systems, such as MP/M, Concurrent DOS, FlexOS, Multiuser DOS, DOS Plus and DR-DOS. It has also made GEM, a DOS shell 8 months before Microsoft released the first version of Windows.