81. The time required for the fetching and execution of one simple machine instruction is
A. Delay time
B. CPU cycle
C. Real time
D. Seek time
✅ The correct answer is option B.
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
82. Microprocessor was introduced in which generation of computer?
A. Second Generation
B. Fourth Generation
C. Both (A) and (B)
D. Third Generation
✅ The correct answer is option B.
83. Which of the following require large computer memory?
A. Imaging
B. Graphics
C. Voice
D. All of the above
✅ The correct answer is option D.
84. Perforated paper used as input or output media is known as
A. Paper tape
B. Magnetic tape
C. Punched paper tape
D. Card punch
✅ The correct answer is option A.
85. A file that includes an index directory to facilitate random access is
A. Sequential file
B. Indexed file
C. Random file
D. Serial file
✅ The correct answer is option B.
86. Process of Combining strings is known as
A. Compiling
B. Combining
C. Attaching
D. Concatenation
✅ The correct answer is option D.
87. The term ‘user interface’ refers to ……..
A. What the user sees on the screen and how they can interact with it.
B. How the operating system responds to user commands.
C. the means by which the user interacts with the peripheral devices on the computer.
D. the monitor that is available for the computer.
✅ The correct answer is option A.
88. The IC was invented at Texas instruments in year 1958 by
A. Jack Kilby
B. Clive Sinclair
C. John Napier
D. Steve Wozniak
✅ The correct answer is option A.
89. Which of the following circuit is used as a ‘Memory device’ in computers?
A. Rectifier
B. Flip Flop
C. Comparator
D. Attenuator
✅ The correct answer is option B.
90. IDE (ATE) or SATA interface connect Mother board with-
A. Mother board
B. RAM
C. Processor
D. Hard disk
✅ The correct answer is option D.