Question

The computer communicates with the user via:

(a) CPU

(b) CRT

(c) Graphics

(d) Display button

This question was addressed to me in a national level competition.

My question comes from Computer-Aided Design in chapter Other Major Topics in Civil Engineering of Basic Civil Engineering

Answer 1

Right choice is (b) CRT

For explanation I would say: Cathode Ray Tube (CRT) screen gives the user the design created as an image. It is done by entering commands to get specific functions performed.