Data Topic- Two's Complement Quiz

What is the binary representation of -5 using 8-bit two's complement?

• 11001011

• 11111111

• 10111011

• 00000101

What is the binary representation of -10 using 8-bit two's complement?

• 00001010

• 11111111

• 11110110

• 10000110

Convert the decimal number 25 to 8-bit two's complement binary.

• 11001000

• 00011001

• 11111111

• 00010101

Convert the decimal number -15 to 8-bit two's complement binary.

• 00010001

• 11111111

• 00001111

• 11110001

Convert the 8-bit two's complement binary 11011011 to decimal.

• 42

• 16

• 25

• -37

Convert the 8-bit two's complement binary 01010101 to decimal.

• 42

• 85

• 127

• 170

In Computer Science what is meant by the 'unsigned integers'?

• The set of whole numbers 0,1,2,3,...

• The set of positive andnegative integers ...,-2, -1, 0, 1, 2,...

• Integers where we don't know if they are positive or negative

Convert this 4-bit binary two's complement number to denary ...

0 1 1 1

In two's complement representation, which bit represents a negative quantity?

• most significant bit

• least significant bit

• all the bits

• none of the bits

Convert -23 to 6-bit binary two's complement representation