Q. Magnetic disks are the most popular medium for

  • (A) direct access
  • (B) sequential access
  • (C) both of above
  • (D) none of above
πŸ’¬ Discuss
βœ… Correct Answer: (D) none of above

Q. A technique used by codes to convert an analog signal into a digital bit stream is known as

  • (A) pulse code modulation
  • (B) pulse stretcher
  • (C) query processing
  • (D) queue management
πŸ’¬ Discuss
βœ… Correct Answer: (A) pulse code modulation

Q. Regarding a VDU, Which statement is more correct?

  • (A) it is an output device
  • (B) it is an input device
  • (C) it is a peripheral device
  • (D) it is hardware item
πŸ’¬ Discuss
βœ… Correct Answer: (C) it is a peripheral device

Q. A modern electronic computer is a machine that is meant for

  • (A) doing quick mathematical calculations
  • (B) input, storage, manipulation and outputting of data
  • (C) electronic data processing
  • (D) performing repetitive tasks accurately
πŸ’¬ Discuss
βœ… Correct Answer: (B) input, storage, manipulation and outputting of data

Q. When was vacuum tube invented?

  • (A) 1900
  • (B) 1906
  • (C) 1910
  • (D) 1880
πŸ’¬ Discuss
βœ… Correct Answer: (B) 1906

Q. Which of the following produces the best quality graphics reproduction?

  • (A) laser printer
  • (B) ink jet printer
  • (C) plotter
  • (D) dot matrix printer
πŸ’¬ Discuss
βœ… Correct Answer: (C) plotter

Q. Computers with 80286 microprocessor is

  • (A) xt computer
  • (B) at comptuers
  • (C) ps/2 computer
  • (D) none of above
πŸ’¬ Discuss
βœ… Correct Answer: (B) at comptuers

Q. An application suitable for sequential processing is

  • (A) processing of grades
  • (B) payroll processing
  • (C) both a and b
  • (D) all of above
πŸ’¬ Discuss
βœ… Correct Answer: (C) both a and b

Q. Which of the following is not processing?

  • (A) arranging
  • (B) manipulating
  • (C) calculating
  • (D) gathering
πŸ’¬ Discuss
βœ… Correct Answer: (D) gathering

Q. The digital computer was developed primarily in

  • (A) ussr
  • (B) japan
  • (C) usa
  • (D) uk
πŸ’¬ Discuss
βœ… Correct Answer: (C) usa

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