341. A large number of computers in a wide geographical area can be efficiently connected using
A. Twisted pair lines
B. Coaxial cables
C. Communications satellites
D. All of the above
✅ The correct answer is option C.
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
342. The unit of a computer system that executes program, communicates with and often controls the operation of other subsystems of the computer is known as
A. CPU
B. Control Unit
C. I/O unit
D. Peripheral unit
✅ The correct answer is option A.
343. Magnetic storage devices can represent binary 0 by the absence of?
A. A magnetic field
B. Magnetic tape
C. Static electricity
D. It cannot possible.
✅ The correct answer is option B.
344. Computer Virus is a _______.
A. Hardware
B. Software
C. Bacteria
D. Freeware
✅ The correct answer is option B.
345. The 0 and 1 in the binary numbering system are called binary digits or _____
A. bytes
B. kilobytes
C. decimal bytes
D. bits
✅ The correct answer is option D.
346. Who is the creator of the PASCAL language?
A. Niklaus Wirth
B. Dijkstra
C. Donald Knuth
D. Basic Pascal
✅ The correct answer is option A.
347. Computer Operators
A. Write computer programs for specific problems
B. Operate the devices which input and output data from the computer
C. Normally require a college degree in computer science
D. All of the above
✅ The correct answer is option B.
348. Tiny rings made of magnetic material that can be polarised to represent binary 1 or 0 is called
A. Magnetic core
B. Magnetic disk
C. Card punch
D. Floppy disk
✅ The correct answer is option A.
349. Which of these is the first web-based e-mail service?
A. GMail
B. Yahoo Mail
C. Hotmail
D. Rediff Mail
✅ The correct answer is option C.
350. In analog computer
A. Input is first converted to digital form
B. Input is never converted to digital form
C. Output is displayed in digital form
D. All of the above
✅ The correct answer is option B.