What is the Largest 8 bit negative number which can be represented using 2s complement?

The largest 8-bit negative number that can be represented using two's complement is -1. In two's complement representation, -1 is expressed as 11111111 in binary. This is because the most significant bit (MSB) indicates the sign, and in this case, it is set to 1, indicating a negative number. The range of 8-bit two's complement numbers is from -128 to 127.