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Message: <blockquote data-quote="Nisala88" data-source="post: 9540481" data-attributes="member: 8045">Sign & magtitude representationAn n-bit word can have 2 to the power n possible different values from 0 to 2 to the power n -1, for example, an 8-bit word can represent the numbers 0,1,....,254,255. One way of representing a negative number is to take the most significant bit and reserve it to indicate the sign of the number. The usual conversation is to choose the sign bit to be 0 to represent positive numbers and to choose it to be 1 to represent negative numbers.for example, in 8 bits we can interpret the two numbers 00001101 and 100011010 - sign bit 0001101 (number magnitude)  = + 13 subscript 10and1 - sign bit0001101 (number magnitude)  = - 13 subscript 10Using a sign magnitude representation is a perfect valid way to represent signed numbers, although it is not widely used in integer arithmetic. The range of a sign and magnitude number in n bits is given by,  -(2 to the power (n-1) - 1) to +(2 to the power (n-1) - 1)All we have done is to take an n bit number, use one bit to represent the sign and left the remaining n-1 bits to represent the number.One of the objections to this system is that it has two values for zero,  00000000 = +0 and 10000000 = -0mage 1st year text book eken balan gahuwe, bohoma keti karala, mamahithanawa meka prayojanawath wei kiyala</blockquote>

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