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Computer Fundamentals - 3

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How many wires are threaded through the cores in a coincident-current core memory?

  1. 2

  2. 4

  3. 8

  4. 16


Correct Option: C

In MODEM, _____.

  1. several digital signals are multiplexed

  2. a digital signal changes some characteristic of a carrier wave

  3. digital signal is amplified

  4. all of the above


Correct Option: B

In digital data transmission _____.

  1. baud rate is equal to bit rate

  2. baud rate is always smaller than the bit rate

  3. baud rate is always higher that bit rate

  4. none of these


Correct Option: D

Information retrieval is fastest from _____.

  1. floppy disk

  2. magnetic tape

  3. hard disk

  4. all of the above


Correct Option: C

Conversion of decimal number 71 to its binary number is _____.

  1. 110011

  2. 111011

  3. 0110011

  4. 1000111


Correct Option: D

Which of the following topologies is highly reliable?

  1. Star

  2. Bus

  3. Fully connected Mesh

  4. All of the above


Correct Option: C

Which of the following topologies is not broadcast type?

  1. Star

  2. Bus

  3. Ring

  4. Tree


Correct Option: C

Conversion of decimal number 99 to its binary number is _____

  1. 1100011

  2. 101

  3. 1110

  4. 1111


Correct Option: A

Conversion of decimal number 28 to its octal number is _____.

  1. 32

  2. 34

  3. 36

  4. 40


Correct Option: B

What type of magnetic material is normally used in bubble memories?

  1. Magnetic core

  2. Cobalt

  3. Garnet

  4. Metallic


Correct Option: C

Conversion of decimal number 67 to its octal number is _____

  1. 109

  2. 103

  3. 100

  4. 99


Correct Option: B

Conversion of binary number 1011011 to its decimal number is _____.

  1. 81

  2. 91

  3. 100

  4. 200


Correct Option: B

Conversion of hexadecimal number 6B2 to its binary number equivalent is _____.

  1. 1111010111

  2. 11010110010

  3. 0110011001111

  4. 11111111


Correct Option: B

Conversion of octal number 7432 to its binary number is _____.

  1. 1111010111

  2. 111100011010

  3. 110011010111

  4. 111111111


Correct Option: B

The process of entering data into storage location _____.

  1. adds to the contents of the location

  2. causes variation in its address number

  3. is known as a readout operation

  4. is destructive of previous contents


Correct Option: B

Conversion of binary number 10000000 to decimal number is _____.

  1. 128

  2. 1034

  3. 1124

  4. 1137


Correct Option: A

Conversion of binary number 1101100111111 to hexadecimal number is _____.

  1. D8F8

  2. A8B9

  3. 789

  4. 1B3F


Correct Option: D

Conversion of binary number 1101 to octal number is _____.

  1. 14

  2. 15

  3. 17

  4. 19


Correct Option: B

Conversion of binary number 11111 to octal number is _____.

  1. 35

  2. 36

  3. 37

  4. 32


Correct Option: C

Conversion of binary number 1001 to hexadecimal number is _____.

  1. 7

  2. 8

  3. 9

  4. 10


Correct Option: C

Conversion of binary number 101101 to hexadecimal number is _____.

  1. 3A

  2. 2D

  3. 2E

  4. 27


Correct Option: B

Conversion of binary number 1111 to hexadecimal number is _____.

  1. F

  2. 57

  3. A

  4. 40


Correct Option: A

Conversion of decimal number 74 to hexadecimal number is _____.

  1. 4A

  2. 5A

  3. 41

  4. 2D


Correct Option: A

Conversion of binary number 11001 to decimal number is _____.

  1. 27

  2. 25

  3. 19

  4. 10


Correct Option: B

Conversion of decimal number 93 to hexadecimal number is _____.

  1. 2D

  2. 5D

  3. 62

  4. 31


Correct Option: B
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