Wednesday, September 1, 2010

A.

How is 2's or 1's complement useful when designing digital circuits?

6 comments:

  1. A two's-complement system or two's-complement arithmetic is a system in which negative numbers are represented by the two's complement of the absolute value;this system is the most common method of representing signed integers on computers. In such a system, a number is negated (converted from positive to negative or vice versa) by computing its two's complement. An N-bit two's-complement numeral system can represent every integer in the range −2N−1 to (+2N−1)−1.

    The two's-complement system has the advantage of not requiring that the addition and subtraction circuitry examine the signs of the operands to determine whether to add or subtract. This property makes the system both simpler to implement and capable of easily handling higher precision arithmetic. Also, zero has only a single representation, obviating the subtleties associated with negative zero, which exists in ones'-complement systems

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  2. The 2's complement code system is advantageous that the negative number can be easily expressed and operated so that the consistency for both addition and subtraction can be used in operating the numbers

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  3. 1's complement& 2's complement are useful in binary addition and subtraction if one of the number is positive number and the other is negative number.
    (By manish Toppo)

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  4. 1's and 2's complements are very much useful in designing the circuits which involves binary addition and subtraction...

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  5. Binary subtraction will be made very easy n simple using 1's and 2's complement.

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  6. Using 1's and 2's complement form,with the help of adder,subtraction can be performed.This minimizes the complexity of designing circuits.....

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