Word: ms-dos
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Dates: during 1984-1984
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Various kinds of software now give instructions to computers. Systems software controls the parts of a computer, including the video screen, the central processing unit and the disc drives, and makes them work together. Though sold under obscure brand names like CP/M, MS-DOS and UNIX, systems software for personal computers can be highly profitable, and last year sales totaled $500 million...
Calif, created the first popular one, CP/M, but it has been supplanted by MS-DOS, which was developed by Microsoft for the IBM Personal Computer. In addition, AT&T is promoting UNIX, a system particularly efficient at performing several different tasks at once and communicating with other computers...