Selected MCQ

Current Question
Where does a computer mouse move over the table surface, the trackball is ____.
  • A. Stationary
  • B. Difficult to move
  • C. Dragged
  • D. Moved in small steps
Correct Answer: A
Explanation:
In a trackball mouse, the ball remains stationary while the user rotates it.
Related Question 1
Errors from computer hardware and software can be identified and removed by the process of?
  • A. Formatting
  • B. Debugging
  • C. Encrypting
  • D. Compiling
Correct Answer: B
Explanation:
Debugging is the process of finding and removing errors in software.
Related Question 2
At the start of the computer, the data that can retain stored information even after power is removed:
  • A. Volatile
  • B. Non-Volatile
  • C. Both A & B
  • D. Hard Drive
Correct Answer: B
Explanation:
Non-volatile memory (ROM, hard disk) retains data without power.
Related Question 3
Computer Mouse was invented in 1964 by ____.
  • A. Douglas Engelbart
  • B. Herman Hollerith
  • C. Bill Gates
  • D. Allan Shugart
Correct Answer: A
Explanation:
Douglas Engelbart invented the computer mouse in 1964.
Related Question 4
Computers, which combine both measuring and counting, are called ____.
  • A. Analog
  • B. Digital
  • C. Hybrid
  • D. All of these
Correct Answer: C
Explanation:
Hybrid computers combine features of both analog and digital computers.
Related Question 5
Computers that are used in large organizations such as insurance companies and banks, where many people frequently need to use same data, are ____.
  • A. Mainframe computers
  • B. Supercomputers
  • C. Hybrid computers
  • D. Desktop computers
Correct Answer: A
Explanation:
Mainframe computers are designed for high-volume data processing in large organizations.