121. Who invented the microprocessor?
A. Marcian E Hoff
B. Herman H Goldstein
C. Joseph Jacquard
D. All of the above
✅ The correct answer is option A.
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
122. A processing unit that coordinates networks and data communication is known as
A. Control unit
B. Communications processor
C. Register unit
D. CPU
✅ The correct answer is option B.
123. In a punched card system, data is processed by a
A. keypunch machine, sorter, and posting machine
B. accounting machine, posting machine, and billing machine
C. sorter, posting machine, and billing machine
D. accounting machine, keypunch machine, and sorter
✅ The correct answer is option D.
124. The software used to convert source program instructions to object instruction is known as
A. Compiler
B. Assembler
C. Interpreter
D. Language processor
✅ The correct answer is option D.
125. Super-computers
A. Are found at thousands of sites around the world
B. Can now fit on a single silicon chip
C. Are usually designed to process accounting applications
D. Are not fast enough for some applications
✅ The correct answer is option D.
126. An electronic logic gate whose output is logic 0 only when all inputs are logic 1 is
A. NOR
B. NAND
C. OR
D. NOT
✅ The correct answer is option B.
127. Software programs that close potential security breaches in an operating system are known as:
A. Security breach fixes
B. Refresh patches
C. Security repairs
D. Security patches
✅ The correct answer is option D.
128. A computer-controlled device for training exercises that duplicates the work environment is a:
A. simulator
B. duplicator
C. trainer
D. COM device
✅ The correct answer is option A.
129. The first generation of computers available was based on the bit micro processors.
A. 4
B. 8
C. 16
D. 64
✅ The correct answer is option B.
130. A collection of interrelated file in computer is a-
A. File manager
B. Field
C. Record
D. Database
✅ The correct answer is option D.