Assume that there are 7-bits that are available to store a binary number. Specify the range of numbers that can be represented by 1's Complement. I found that the range for 2's Complement is -64 ≤ 0 ≤ 63. How do I do this for 1's Complement?
Range of Values Represented by 1's Complement with 7 bits
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In 2s complement method of representation of binary numbers, for signed numbers, the range of numbers that can be represented is -2^(N-1) - (2^(N-1)-1) for an N-bit number. That is why you have obtained the range -64 - 63 for a 7 bit binary number.
Now in the case of 1s Complement method of representation, the range of numbers that can be represented is -(2^(N-1)-1) - (2^(N-1)-1). And this will result in a range of -63 - 63 for a 7 bit number in 1s complement representation.