computer system
noun[C]
ITukusacompletecomputerincludingtheoperatingsystem(=mainsoftware)andequipmentthat makes itwork:
You will alwaysfindgreatdealsoncomputersystemswhen youcheckoutourwebsite.
agroupofcomputersthat areconnectedandworktogether:
Hackersbrokeinto the bank’scomputersystemandstolethousands ofcustomerfiles.