The first problem was figuring out which version had been made available: although the Computer History Museum labelled the package simply as “MS-DOS 2.0”, it actually contained a mix of OEM ...

In March 1983, both MS-DOS 2.0 and the IBM PC/XT were released. The rest, as they say, is history. MS-DOS 3.0 followed in 1984 (alongside the IBM PC/AT), and MS-DOS 4.0 with a mouse-powered, menu ...

On the IBM PC, however, at US$240 per copy for IBM's version, CP/M-86 sold poorly compared to the US$40 PC DOS; one survey found that 96.3% of IBM PCs were ordered with DOS, compared to 3.4% with ...

How do I edit config.sys from within dos 3.2?I recently came across a completely working zenith z2(?) computer. the monitor connects to the base ...

A decade after releasing the source code for MS-DOS 1.1 and MS-DOS 2.0, Microsoft has open sourced a (slightly) more recent operating system: MS-DOS 4.0. First released in 1988, you can now ...

Back in 2014, Microsoft open-sourced the MS-DOS source code for versions 1.25 and 2.0 via the Computer History Museum. Other DOS versions have also been open-sourced over the years.

Before Microsoft released MS-DOS, there was 86-DOS. Now version 0.1 is online thanks to a hobbyist’s archival work.

This isn't the first time Microsoft has open-sourced MS-DOS, as its GitHub repository already has versions 1.25 and 2.0, which were originally shared at the Computer History Museum back in 2014.

Microsoft has just released the source code for one of its operating systems… but don’t worry. Hell hasn’t frozen over. It’s just that a lot of time has passed and the software isn’t ...