In 1980, ka dib markii Microsoft ayaa ballan qaaday in ay bixiyaan IBM nidaamka qalliinka disk (DOS) ee asalka ah IBM PC, inkastoo ay weli ma horumariyo mid ka mid ah, Allen horseeday heshiis ah ee Microsoft si ay u iibsadaan QDOS (Quick iyo wasakh Operating System), oo uu qoray Tim Paterson, kuwaas oo, wakhtigaas, waxaa loo shaqeeyey ee Seattle Computer Products.
Shirkadda Microsoft