Question

Reset inputs are used in IC 7490, why?

(a) For increment of bit by 1

(b) For decrement of bit by 1

(c) For reset the counter

(d) For setting the counter

This question was posed to me in a job interview.

My question is taken from Counter ICs in chapter Counters of Digital Circuits

Answer 1

Correct answer is (c) For reset the counter

To explain I would say: The reset inputs are used to reset the counter to 0000.