One of the following is not a good way to prevent virus.

The first stage of data processing activities is ?

Using Boolean identities, reduce the given Boolean expression:
A(A+1) + A(B+0) + C.1

In computer architecture, the type of bus that connects the major components of a computer system is

Which of the following controls the way in which the computer system functions and provides a means by which users can interact with the computer.