Computer Number System Questions Practice Question and Answer

Q:

3 A nibble is equal to bits.

645 0

  • 1
    4
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    32
    Correct
    Wrong
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Answer : 1. " 4"
Explanation :

Actually, a nibble consists of 4 bits, not 3. In computing, a nibble is a unit of data that consists of 4 bits, which can represent 16 different values (2^4). Each nibble can be expressed as a single hexadecimal digit (0 to F, where F represents 15 in decimal) and is half of a byte, which consists of 8 bits. So, 4 bits make up one nibble.


Q:

Which of the following is not a characteristic of a computer system?

204 0

  • 1
    Diversity
    Correct
    Wrong
  • 2
    Chastity
    Correct
    Wrong
  • 3
    Speed
    Correct
    Wrong
  • 4
    Ability to think
    Correct
    Wrong
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Answer : 4. "Ability to think"
Explanation :

1. A computer is an electronic machine, which presents the required information or result (Output) by doing a specialized process according to a series of instructions (Program) given on the prescribed data (Input).

2. The following are the main characteristics of a computer.

(1) Speed

(2) Accuracy

(3) Economy

(4) Reliability

(5) Storage & Retrieval

(6) Repeated Processing Capacity

Q:

The mathematical knowledge which is the basis of computer?

449 0

  • 1
    binary system of numbers
    Correct
    Wrong
  • 2
    graph
    Correct
    Wrong
  • 3
    equational equation
    Correct
    Wrong
  • 4
    set theory
    Correct
    Wrong
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Answer : 1. "binary system of numbers"

Q:

What is the smallest unit of computer data?

566 0

  • 1
    bit
    Correct
    Wrong
  • 2
    byte
    Correct
    Wrong
  • 3
    record
    Correct
    Wrong
  • 4
    file
    Correct
    Wrong
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Answer : 1. "bit "

Q:

The decimal equivalent of the number (614)7  will be –

359 0

  • 1
    1000
    Correct
    Wrong
  • 2
    614
    Correct
    Wrong
  • 3
    305
    Correct
    Wrong
  • 4
    200
    Correct
    Wrong
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Answer : 3. "305"

Q:

The octal equivalent of the decimal number 214 is –

356 0

  • 1
    214
    Correct
    Wrong
  • 2
    300
    Correct
    Wrong
  • 3
    326
    Correct
    Wrong
  • 4
    200
    Correct
    Wrong
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Answer : 3. "326"

Q:

The base of a binary number is -

765 3

  • 1
    4
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 2. "2"

Q:

How many bytes are there in a kilobyte?

386 0

  • 1
    1000
    Correct
    Wrong
  • 2
    500
    Correct
    Wrong
  • 3
    1024
    Correct
    Wrong
  • 4
    2000
    Correct
    Wrong
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Answer : 3. "1024"

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