Video encyclopedia

11/06/1991 Microsoft releases MS DOS 5.0


Silly MS-DOS 5 Promo Video


Installing MS DOS 5.0


How IBM ended up using MS-DOS rather than CP/M (1995) [Computer Chronicles]

IBM PC DOS is a discontinued operating system for the IBM Personal Computer. DOS 5.0 was one of the biggest upgrades of DOS in its history. It supported the use of the High Memory Area (HMA) and Upper Memory Blocks (UMBs) on 80286 and later systems to reduce its conventional memory usage. It was also the last version of DOS in which IBM and Microsoft shared the code. DOS 5 was later integrated to the OS/2 operating system.
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    • PC DOS as a distributed file client