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IBM Personal Computer XT
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<p>The IBM Personal Computer XT (model 5160, often shortened to PC/XT) is the second computer in the <a href="/facts/IBM_Personal_Computer/yhcJGMPL">IBM Personal Computer</a> line, released on March 8, 1983. Except for the addition of a built-in <a href="/facts/Hard_disk_drive/kekLSGSE">hard drive</a> and extra expansion slots, it is very similar to the original IBM PC model 5150 from 1981. </p>