aj set

 Register is a group of Flip-Flops.
 It stores binary information 0 or 1.
 It is capable of moving data left or right with clock pulse.
 Registers are classified as
 Serial-in Serial-Out
 Serial-in parallel Out
 Parallel-in Serial-Out
 Parallel-in parallel Out

 Parallel-in Unidirectional Shift Register

 Parallel input data is applied at IAIBICID.
 Parallel output QAQBQCQD.
 Serial input data is applied to A FF.
 Serial output data is at output of D FF.
 L/Shift is common control input.
 L/S = 0, Loads parallel data into register.
 L/S = 1, shifts the data in one direction

Universal Shift Register