<P> This representation is also called `` sign -- magnitude '' or `` sign and magnitude '' representation . In this approach , the problem of representing a number 's sign can be to allocate one sign bit to represent the sign : setting that bit ( often the most significant bit ) to 0 is for a positive number or positive zero , and setting it to 1 is for a negative number or negative zero . The remaining bits in the number indicate the magnitude ( or absolute value ) . Hence , in a byte with only seven bits ( apart from the sign bit ) , the magnitude can range from 0000000 ( 0 ) to 1111111 ( 127 ) . Thus numbers ranging from − 127 to + 127 can be represented once the sign bit ( the eighth bit ) is added . For example , − 43 encoded in an eight - bit byte is 10101011 while 43 is 00101011 . A consequence of using signed magnitude representation is that there are two ways to represent zero , 00000000 ( 0 ) and 10000000 ( − 0 ) . </P>
<P> This representation is also called `` sign -- magnitude '' or `` sign and magnitude '' representation . In this approach , the problem of representing a number 's sign can be to allocate one sign bit to represent the sign : setting that bit ( often the most significant bit ) to 0 is for a positive number or positive zero , and setting it to 1 is for a negative number or negative zero . The remaining bits in the number indicate the magnitude ( or absolute value ) . Hence , in a byte with only seven bits ( apart from the sign bit ) , the magnitude can range from 0000000 ( 0 ) to 1111111 ( 127 ) . Thus numbers ranging from − 127 to + 127 can be represented once the sign bit ( the eighth bit ) is added . For example , − 43 encoded in an eight - bit byte is 10101011 while 43 is 00101011 . A consequence of using signed magnitude representation is that there are two ways to represent zero , 00000000 ( 0 ) and 10000000 ( − 0 ) . </P>
which method of representation has two representations for 0
which method of representation has two representations for 0
`` sign and magnitude '' representation
`` sign and magnitude '' representation