Shift Registers - Technical MCQs

Q1:

By adding recirculating lines to a 4-bit parallel-in, serial-out shift register, it becomes a ________, ________, and ________-out register.

A parallel-in, serial, parallel

B serial-in, parallel, serial

C series-parallel-in, series, parallel

D bidirectional in, parallel, series

ANS:A - parallel-in, serial, parallel

One bit shifting takes place just after the output obtained on every register.

Hence, by adding recirculating lines to a 4-bit parallel-in-serial-out shift register, it becomes a Parallel-in, Serial, and Parallel-out register.