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3 November, 18:21

25 An 8-bit computer uses 2's complement to store negative numbers. The range of numbers that can be

stored in this computer is ...

A) from - 256 to + 256

B) from - 127 to + 127

C) from - 255 to + 256

D) from - 128 to + 127

E) none of the above.

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Answers (1)
  1. 3 November, 19:12
    0
    -128 to + 127

    Explanation:

    8-bits = 2⁸ = 256 possible values

    Half of those will be positive and the other half will be negative.

    So 128 positive number and - 128 negative numbers. But we must also include

    the value 0, so now the range will be from - 128 to 127
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Home » Engineering » 25 An 8-bit computer uses 2's complement to store negative numbers. The range of numbers that can be stored in this computer is ... A) from - 256 to + 256 B) from - 127 to + 127 C) from - 255 to + 256 D) from - 128 to + 127 E) none of the above.
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