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Reference.org
DEC Professional
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<p>The Professional 325 (PRO-325), Professional 350 (PRO-350), and Professional 380 (PRO-380) are <a href="/facts/PDP-11/9HkGUzFn">PDP-11</a> compatible <a href="/facts/Microcomputer/ETW22UTv">microcomputers</a>. The Pro-325/350 were introduced in 1982 and the Pro-380 in 1985 by <a href="/facts/Digital_Equipment_Corporation/ztxs6keA">Digital Equipment Corporation</a> (DEC) as high-end competitors to the <a href="/facts/IBM_PC/yhcJGMPL">IBM PC</a>. </p>