Computer

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.

📘 Basics of Computer Science MCQs

📘 COMPUTER SCIENCE

📘 Operating System

861. A printed document reader which scans the characters and then encodes them in a computer-compatible code for direct transmission to the computer is called

A. Optical character reader

B. Kurzweil Data Entry Machine (KDEM)

C. MICR

D. Laser scanner

✅ The correct answer is option B.

862. It is a small piece of text stored on a user’s computer by a web browser for maintaining the state. What we are talking about?

A. Application

B. Session

C. Cookie

D. QueryString

✅ The correct answer is option C.

863. To what temporary area can you store text and other data, and later paste them to another location?

A. The clipboard

B. ROM

C. CD-ROM

D. The hard disk

✅ The correct answer is option A.

864. Which of the following time will normally be determined by the requirements of the device to which the transfer is being made

A. Access

B. Cycle

C. Hold

D. Delay

✅ The correct answer is option C.

865. A mechanism for arranging controlled access to a shared resource is

A. Retrieving

B. Sorting

C. Balleting

D. Lock-out

✅ The correct answer is option D.

866. Which of the following input/output devices is not associated with personal computers?

A. mice

B. color monitors

C. punched cards

D. dot-matrix printers

✅ The correct answer is option C.

867. A(n) ____ device is any device that provides information which is sent to the CPU.

A. input

B. output

C. CPU

D. memory

✅ The correct answer is option A.

868. Firewalls are used to protect against _____________

A. Unauthorized Access

B. Virus Attacks

C. Data Driven Attacks

D. Fire Attacks

✅ The correct answer is option A.

869. Which type of system puts the user into direct conversation with the computer through a keyboard?

A. Real time processing

B. Interactive computer

C. Batch processing

D. Time sharing

✅ The correct answer is option B.

870. Data systems for planning are often called

A. decision analysis systems

B. planning analysis systems

C. decision support systems

D. All of the above

✅ The correct answer is option C.