Selected MCQ

Current Question
Which of the following executes instructions?
  • A. Motherboard
  • B. Hard disk
  • C. CPU
  • D. None of these
Correct Answer: C
Explanation:
The CPU executes instructions.
Related Question 1
When does the following hold data and the processing instructions temporarily until the CPU needs it?
  • A. ROM
  • B. Control Unit
  • C. Main memory
  • D. None of these
Correct Answer: C
Explanation:
Main memory (RAM) temporarily holds data and instructions for the CPU.
Related Question 2
Which of the following parts of the CPU controls the sequence of execution of instructions?
  • A. ALU
  • B. LU
  • C. CU
  • D. ALU
Correct Answer: C
Explanation:
The Control Unit (CU) controls the sequence of execution.
Related Question 3
All the following are examples of storage devices EXCEPT ____.
  • A. Hard disk drives
  • B. Printers
  • C. Floppy disk drives
  • D. CD drives
Correct Answer: B
Explanation:
Printers are output devices, not storage devices.
Related Question 4
All the following are examples of real security and privacy risks EXCEPT ____.
  • A. Hackers
  • B. Spam
  • C. Viruses
  • D. Identity theft
Correct Answer: B
Explanation:
Spam is unwanted email, but it is not primarily a security/privacy risk, unlike the others.
Related Question 5
A(n) ____ system is a set of Programs containing instructions that coordinate all the activities among computer hardware resources?
  • A. Operating
  • B. Disk- Based
  • C. Management
  • D. Platform
Correct Answer: A
Explanation:
The operating system coordinates hardware resources.