DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   system
      1. The supervisor program or operating system on a
      computer.
      2. The entire computer system, including input/output devices,
      the supervisor program or operating system and possibly
      other software.
      3. Any large program.
      4. Any method or algorithm.
      [Jargon File]