Computer Science Questions and Answers
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.
CPU
application software
operating system
ALU
Correct answer is C
Operating system controls the way in which the computer system functions and provides a means by which users can interact with the computer
In computer architecture, the type of bus that connects the major components of a computer system is
address
data bus
control bus
system bus
Correct answer is D
In computer architecture, the system bus is the main communication route that connects the major components of a computer system, such as the CPU, memory, and input/output devices. It is composed of the data bus, address bus, and control bus. Therefore, the correct answer is 'system bus'.
Using Boolean identities, reduce the given Boolean expression:
A(A+1) + A(B+0) + C.1
A + B + C
A.B.C
A.B + C
A + C
Correct answer is D
Using Boolean identities, the given Boolean expression A(A+1) + A(B+0) + C.1 can be reduced as follows: A.1 + A.B + C = A + A.B + C = A + C. The Boolean identity A + A.B = A is used here, which states that if A is true, the whole expression is true regardless of the value of B.
The first stage of data processing activities is ?
Manipulation
Collection
Conversion
Sorting
Correct answer is B
The first stage of data processing is the collection or gathering of data and recording it in a usable form
One of the following is not a good way to prevent virus
encryption
use of firewall
carelessly exposing your vital and personal information
use of antivirus software
Correct answer is C
Ways of preventing virus
- use of antivirus software
- use of firewall
- exercising care in giving out personal and vital information
- encryptions