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Ones' Complement
The first bit (MSB) is the same as the signed magnitude. It tells a positive by 0 or negative by 1.
The rest of the bits will take the compliment, which means if it is 1 the complement is 0 and if it is 0, then the complement is 1.
The signed ones’ complement has the same problem as the signed magnitude. There are two zeros, 0000 and 1111.
