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Prepare with the best Computer MCQs with answers and explanations for exams and job tests. Our question bank covers computer fundamentals, hardware, software, networking, operating systems, databases, programming, internet, and information technology. These Computer multiple-choice questions are helpful for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, university entry tests, IT certifications, and job interviews. Practice online to improve your knowledge and score higher with our updated and comprehensive Computer MCQs.

291. The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself:

time sharing

time out

time domain

FIFO

✅ The correct answer is option A.

292. When a peripheral device needs immediate attention from the operating system, it generates a(n)

Interrupt

Spool

Stack

Page file

✅ The correct answer is option A.

293. Which of the following file menu option saves document to disk?

Save

Create

Rename

All of above

✅ The correct answer is option A.

Normal Mode

Turbo Mode

✅ The correct answer is option D.

297. In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?

index addressing

indirect addressing

auto increment

auto decrement

✅ The correct answer is option D.

298. What is the extension of the font file?

.ttf

.mdb

.fft

.txt

✅ The correct answer is option A.

299. The primary purpose of an operating system is to:

make computer easier to use

keep system programmers employed

make the most efficient use of the hardware

allow people to sue the computers

✅ The correct answer is option C.

300. Semaphores

synchronize critical resources to prevent deadlock

synchronize critical resources to prevent contention

are used to do I/O

are used for memory management

✅ The correct answer is option A.

Computer

291. The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself:

292. When a peripheral device needs immediate attention from the operating system, it generates a(n)

293. Which of the following file menu option saves document to disk?

294. Disk label name can be up to …… characters

295. In a folder, which of the following key is used to rename the file or folder

296. Which of the following is not a mode in starting Windows?

297. In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?

298. What is the extension of the font file?

299. The primary purpose of an operating system is to:

300. Semaphores