Digital Research:
Digital Research, Inc. (a.k.a. DR or DRI; originally Intergalactic Digital Research) was the company created by Dr. Gary Kildall to market and develop his CP/M operating system and related products.
en.wikipedia.org
數位研究公司:
數位研究公司（Digital Research Inc.），簡稱DR或DRI，是一家以為迷你電腦“PDP-11”編寫作業系統而起家的電腦公司，總部位於美國加州蒙特雷縣太平洋叢林市（Pacific Grove），1974年創立，1991年被Novell公司收購。
zh.wikipedia.org
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Digital Research數位研究公司