MS/DOS Operating System

  • Gerard O’Regan


IBM outsourced the development of the PC-DOS (PC Disk Operating System) for the IBM PC to a small company called Microsoft. This proved to be a major mistake, as the terms of the deal with Microsoft were favorable to the latter. It allowed Microsoft to market and sell its own version of the operating system (i.e., MS-DOS) to other manufacturers as the operating system for their IBM-compatible computers. The IBM-compatible PCs later came to dominate the market, as the open architecture of the IBM PC allowed manufacturers to create clone machines compatible with the original IBM PC at a more competitive price.


  1. Bloomberg Business Week Magazine (2004) The man who could have been Bill Gates. October 2004Google Scholar

Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Gerard O’Regan
    • 1
  1. 1.SQC ConsultingMallowIreland

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