Question

What is the computer’s main circuit board and it connects directly or indirectly to every part of the computer.

Answer 1

comp. main circuit is c. p. u and it was a brain of comp. yes it was directly or indirectly to every part of the comp.

Answer 2

CPU or also called as Central Processing Unit is the main part of the computer that is responsible for all the functioning.

All the parts of the computer whether internal or external are related to CPU in one way or the other and that is why it is referred to as the brain of the computer.