March 4, 2005
MS-DOS paternity dispute goes to court
The parentage of the MS-DOS operating system is to be decided in court. Tim Paterson, who sold the Intel-compatible operating system 86-DOS (aka QDOS) to Microsoft in 1980 is suing author and former Times editor Harold Evans, and his publisher Time Warner, for defamation. Paterson's work became Microsoft's first operating system - it subsequently rebadged QDOS as MS-DOS version 1.0, and it was made available with the original IBM PC.