Question

To keep output data accurate, 4-bit series-in, parallel-out shift registers employ a ____________

(a) Divide-by-4 clock pulse

(b) Sequence generator

(c) Strobe line

(d) Multiplexer

The question was posed to me during an internship interview.

This key question is from Ring Counter in division Registers of Digital Circuits

Answer 1

Correct choice is (c) Strobe line

The best I can explain: In computer or memory technology, a strobe is a signal that is sent that validates data or other signals on adjacent parallel lines. Thus, in registers the strobe line is there to check the availability of data.