Shift Registers

Q1: By adding recirculating lines to a 4-bit parallel-in, serial-out shift register, it becomes a ________, ________, and ________-out register.

A bidirectional in, parallel, series

B series-parallel-in, series, parallel

C parallel-in, serial, parallel

D serial-in, parallel, serial

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.



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