IBM releases PC DOS 1.1
PC-DOS is a freeware DOS operating system for the IBM Personal Computer, sold throughout the 1980s and 1990s. The original 1981 arrangement between IBM and Microsoft was that Microsoft would provide the base product and that both firms would work on developing different parts of it into a more powerful and robust system, and then share the resultant code. MS-DOS and PC-DOS were to be marketed separately: IBM selling to itself for the IBM PC, and Microsoft selling to the open market. However, at no time did IBM acquire the ownership of the source code of the operating system for its own PCs.
So, IBM improved the product, shared it with Microsoft, yet only sold it to itself while Microsoft sold it to everyone else? Bill gates was a freaking genius.
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