DR-DOS

DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is an operating system of the DOS family, written for IBM PC-compatible personal computers. It was originally developed by Gary A. Kildall's Digital Research and derived from Concurrent PC DOS 6.0, which was an advanced successor of CP/M-86. As ownership changed, various later versions were produced with names including and .

DR-DOS

DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is an operating system of the DOS family, written for IBM PC-compatible personal computers. It was originally developed by Gary A. Kildall's Digital Research and derived from Concurrent PC DOS 6.0, which was an advanced successor of CP/M-86. As ownership changed, various later versions were produced with names including and .