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

1. The ………… operating system was initially created in the early 1970s at AT & T’s Bell Labs.

A. Linux

B. DOS

C. Unix

D. GNU

✅ The correct answer is option C.

2. Which of the following is non-impact printer?

A. Drum printer

B. Line printer

C. Chain printer

D. Laser printer

✅ The correct answer is option D.

3. Which of the following are used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU?

A. microprocessors

B. registers

C. ROM chips

D. data buses

✅ The correct answer is option B.

4. Where does a computer add and compare data?

A. Hard disk

B. Floppy disk

C. CPU chip

D. Memory chip

✅ The correct answer is option C.

5. The OCR stand for?

A. Outsized character reader

B. Optical character recognition

C. Operational character reader

D. Only character reader

✅ The correct answer is option B.

6. Which kind of storage device can be carried around?

A. Floppy disk

B. Hard disk

C. System cabinet

D. Hard disk drive

✅ The correct answer is option A.

7. For creating a document, you select …….. option at File Menu.

A. Open

B. Close

C. New

D. Save

✅ The correct answer is option C.

8. What is the name given to the molecular-scale computer?

A. Femtocomputer

B. Nanocomputer

C. Supercomputer

D. Microcomputer

✅ The correct answer is option B.

9. Identity the advantages that Micro Channel Architecture offers over ISA.

A. Automatic System Configuration

B. Less Interference

C. Multiple device handling (the system allows expansion boards to take complete of the bus for certain operations)

D. Greater data transfer rates

✅ The correct answer is option E.

10. No computer can do anything without a

A. program

B. memory

C. chip

D. output device

✅ The correct answer is option A.