Basics of Computer Science MCQs

Strengthen your fundamental knowledge with our Basics of Computer Science MCQs with answers and explanations. Our collection covers key topics such as computer fundamentals, hardware and software, operating systems, networking basics, databases, programming concepts, and internet technologies. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, university entry tests, and IT job assessments. Practice online to improve your understanding, enhance problem-solving skills, and excel in exams with our updated Basics of Computer Science MCQs

671. “Zipping” a file means

A. Encrypting the message
B. Compressing the message
C. Transfer the message
D. All of the above
✅ The correct answer is option B.

679. CPU stands for ______ ?

A. Central Performance Unit
B. Control Processing Unit
C. Common Processing Unit
D. Central Processing Unit
✅ The correct answer is option D.

680. A dot-matrix printer

A. is an input device
B. is an output device
C. cannot print alphabet
D. has a speed of 1000 cps
✅ The correct answer is option B.

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