MS-DOS 5.0 turns 30 years old #VintageComputing @Microsoft

MS-DOS 5.0, used on PCs and compatibles, was released 30 years ago (in 1991) this summer.

It featured support for 3.5 inch 2.88 MB floppy disks, and a full-screen text editor, “EDIT.COM.” It was the first version of MS-DOS to include HIMEM.SYS, which loaded part of the operating system into the Upper Memory Area, (UMA). UMA is the area of RAM between 640 KB and 1,024 KB (1 MB) in legacy computers, that is made available to user applications as RAM.

A promo video (below) was released by Microsoft at the time entitled: YO MS Raps! (beware: 1991 cheese)

More info on Twitter and Computer Hope.


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1 Comment

  1. I remember buying and installing this upgrade that summer. The installer was polished compared to previous DOS versions, and EDIT and QBASIC were nice additions. But, for me, Minix 2.0 was still a much better OS to be running on that PC most of the time.

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