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1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   personal computer
      <computer> (PC) A general-purpose single-user microcomputer
      designed to be operated by one person at a time.
      This term and the concept has been successfully hijacked by
      IBM due to the huge market share of the IBM PC, despite
      its many obvious weaknesses when compared to other equally
      valid claimants to the term, e.g. the Acorn Archimedes,
      Amiga, Atari, Macintosh.
      (1994-11-02)