WordNet (r) 3.0 (2006):

FCS
    n 1: a cooperative nationwide system of banks and associations
         providing credit to farmers and related businesses;
         originally capitalized by the federal government but now
         owned by its members and borrowers [syn: Farm Credit
         System, FCS]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FCS
       Fast Circuit Switching


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FCS
       First Customer Ship (IBM)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FCS
       Frame Check Sequence (FDDI, Token Ring)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FCS
       Frame Check Sum (MODEM)


The Free On-line Dictionary of Computing (30 December 2018):

Frame Check Sequence
FCS

    (FCS) The extra characters added to a frame
   for error detection and correction(?).  FCS is used in
   X.25, HDLC, Frame Relay, and other data link layer
   protocols.

   (1998-02-27)