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Data Representation | Computer System Architecture MCQs with Answers

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Computer Architecture multiple choice questions and answers set contain 5 mcqs on number system and data representation in computer science. Each quiz objective question has 4 options as possible answers. Choose your option and check it with the given correct answer.
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(1) Octal equivalent of hexadecimal code, F3A1 is
[A] 173101
[B] 176541
[C] 171641
[D] 158661

Comment

Answer: Option [C]

1111 0011 1010 0001 i.e. F3A1

001 111 001 110 100 001 i.e. 171641

(2) An 8-bit binary word b7b6b5b4b3b2b1b0 as an integer x ranges from
[A] -128 to 128
[B] -128 to 127
[C] -256 to 256
[D] None of the above

Comment

Answer: Option [B]

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(3) The binary equivalent of the decimal number 0.4375 is
[A] 0.0111
[B] 0.1011
[C] 0.1100
[D] 0.1010

Comment

Answer: Option [A]
(4) Decimal equivalent of the binary number 101001.1011 is
[A] 41.0875
[B] 40.6875
[C] 41.6875
[D] 40.0875

Comment

Answer: Option [C]

1 x 25 + 0 x 24 + 1 x 23 + 0 x 22 + 0 x 21 + 1 x 20.1 x 2-1 + 0 x 2-2 + 1 x 2-3 + 1 x 2-4 = 41.6875

(5) Octal number system is
[A] A positional system with weights 0 to 9
[B] A positional system with weights 0 to 8
[C] A positional system with weights 0 to 7
[D] A non positional system with weights 0 to 7

Comment

Answer: Option [C]

A positional system with weights 0 to 7

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