received time signal detectrecieverecieve onlyrecieverrecognizerrecompilereconstructionrecordrecord blockingrecord countrecord formatrecord gaprecord layoutrecord lengthrecord managementrecord managerrecord numberrecord oriented database managementrecord printerrecord separatorrecording headrecoring densityrecorsive procedurerecoverrecoverable errorrecovering erased filesrecoveryrecovery routinerectangular coordinate systemrectifierrectoreculaulation orderrecurring costsrecursionrecursiverecursive algorithmrecursive procedurerecursive subroutinerecycle binred bookred green blue monitorredirectionredirection operatorredlineredliningredoreduced instruction set computerreductionredundancyredundancy check
