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Microsoft has dusted off the source code for MS-DOS and Word for Windows—some of the most popular and widely used software of the 80s—making it freely available to download from the the Computer ...

In context: Back in 1980, Tim Paterson was creating a new operating system he called QDOS or Quick and Dirty Operating System. The system was later renamed 86-DOS, as it was being designed to run on ...

Microsoft and IBM’s DOS operating system is an important milestone in the history of personal computing, and it’s just as important that we can dig into it and see what makes it tick. That’s part of ...