Word: dos
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...plugging in more than one memory-expansion module or peripheral device calls for a tangle of cables and bricklike power-supply boxes, each of which costs extra. In addition, the machine in its various configurations requires three different versions of IBM's somewhat intimidating disk operating system, PC-DOS...
...neighboring Angola. The topic came up again last week when Chester Crocker, U.S. Assistant Secretary of State for African Affairs, met with South Africa's Foreign Minister Roelof F. ("Pik") Botha in the Cape Verde Islands. Crocker reportedly relayed an offer from Angolan President José Eduardo dos Santos to cut substantially the number of Cuban troops in Angola if South Africa agrees to withdraw its remaining forces from the country and to comply with U.N. Security Council Resolution 435, which is designed to achieve Namibia's independence...
Although the College releases student lists to Harvard offices, it dos not give addresses to student groups or individual students, "even when it seems like quite a legitimate reason," said Registrar Margaret...
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...