Computer Fundamentals & Hardware

J&K Bank PO · Computer Aptitude · 256 practice questions with answers and explanations: 178 Easy, 78 Medium, 0 Hard.

Sample questions

Sample Easy question 1

Which of the following is a storage device?

  1. Mouse
  2. Scanner
  3. Keyboard
  4. Pen drive
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Answer: D. A pen drive stores data.

Sample Easy question 2

Which of the following is NOT an input device?

  1. Scanner
  2. Keyboard
  3. Monitor
  4. Mouse
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Answer: C. A monitor displays output.

Sample Easy question 3

A barcode reader is a(n):

  1. Storage device
  2. Processing device
  3. Output device
  4. Input device
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Answer: D. It reads barcodes and sends data in.

Sample Medium question 4

The number system used by computers is:

  1. Binary
  2. Decimal
  3. Octal only
  4. Roman
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Answer: A. Base 2 uses only 0 and 1.

Sample Medium question 5

The decimal number 10 in binary is:

  1. 1110
  2. 1010
  3. 1100
  4. 1001
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Answer: B. 8 + 2 = 10, so 1010.

Sample Medium question 6

The binary number 1101 in decimal is:

  1. 11
  2. 14
  3. 12
  4. 13
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Answer: D. 8 + 4 + 0 + 1 = 13.

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