Basic objective of this lecture is to presentation on Register. Register is a gaggle of flip-flops. Each flip-flop is efficient at storing one amount of informa­tion. An n-bit register is made up of group of n flip-flops efficient at storing n items of binary information. Beyond the flip-flops, it often have combinational gates that perform certain information processing tasks. Inside its broadest definition, it is made up of group of flip­flops in addition to gates that effect their transition. The flip-flops contain the binary information along with the gates determine the fact that information is transferred into a register.