Electronics Engineering Interview Question:

What is a sequential circuit and What is a combinational circuit?
Is there any difference between them? If yes what is it?

Submitted by: Administrator

A sequential circuit uses flip flops. Unlike combinational logic, sequential circuits have state, which means basically, sequential circuits have memory.

The main difference between sequential circuits and combinational circuits is that sequential circuits compute their output based on input and state, and that the state is updated based on a clock. Combinational logic circuits implement Boolean functions, so they are functions only of their inputs, and are not based on clocks.
Submitted by: Administrator