Binary

Question 1

What are the 2 methods of representing negative numbers in binary

Answer 1

Sign and magnitude
Twos compliment

Question 2

What does MSB stand for

Answer 2

Most significant bit: the leftmost bit

Question 3

How is a negative represented using sign and magnitude

Answer 3

The MSB represents the sign of the number

Question 4

When using sign and magnitude what would a zero as the first bit represent

Answer 4

A positive number

Question 5

Describe twos compliment for representing negative binary values

Answer 5

The MSB represents a negative value

Question 6

Describe how to swap the sign of a number using twos complement

Answer 6

Starting on the right copy each of the bits until you reach the first 1
After this swap every 1 for a 0 and every 0 for a 1

Question 7

Describe how to subtract binary values using twos complement

Answer 7

Swap the sign of the second value and perform a binary addition