One 6th FORM two's compliment

State the range of positive and negative numbers that can be represented by 7-bit two's complement.

• -127 to 128

• -128 to 127

• -64 to 63

• -128 to 1288

what is -15 in 2's compliment

• 1000 0000

• 0000 1111

• 1000 1111

• 1111 0001

What is -80 in 2's compliment

• 1011 0000

• 1011 0001

• 1111 0000

• 0101 0000

What is -35 in 2's compliment

• 000 11101

• 1101 1101

• 1101 1001

• 1100 0001

What is 56 in binary?

• 10101100
• 00101100
• 00111000
• 01011000

What is this UNSIGNED binary number in denary?

1110

• 14

• -6

• -14

• 6

What is this SIGNED binary number in denary?

1100

• 4

• 11

• -4

• 12

What is this SIGNED binary number in denary?

0101

• -5

• 5

• 13

• 12

How many digits can the decimal number system use?

• 2

• 4

• 10

• 100

What is the main advantage of using two's complement to represent signed integers?

• It allows for easier multiplication of large numbers

• It simplifies the process of adding and subtracting negative numbers

• It increases the range of positive numbers that can be represented

• It requires fewer bits than other methods