segmentation and reassembly



  • Its acronym is SAR. In a packet-switched network, the breaking up of a packet into smaller units at the transmission end, with the subsequent reassembling at the receiving end. SAR helps speed up transmissions, and in the compliance with packet size restrictions imposed by a given protocol. Used, for instance, in ATM.
  • acronymSAR


  • noun a register within the CPU that contains the address of the next location to be accessed.