Microsoft and IBM were at the birth of the personal computer in the 1980s, but some people want to prove that they ripped off Gary Kildall's code Ruben de Rijcke, Wikimedia Commons An IT consultant ...

Microsoft released the source code for MS-DOS versions 1.25 and 2.0 through the Computer History Museum in March 2014. This was also intended as a historical document summarizing 'how MS-DOS was born.

Perhaps the most controversial aspect of the original IBM PC is how Microsoft ended up with the contract for the operating system. This would eventually make Microsoft's MS-DOS the standard and set ...