3. Binary and Hexadecimal

Question 1

Binary

Answer 1

0 and 1

Question 2

Conversion for kilobyte to byte

Answer 2

Times by 1000

Question 3

Conversion for byte to kilobyte

Answer 3

Divide by 1000

Question 4

Hexadecimal

Answer 4

A number system which uses base 16, only 10 digits 0-9 and then uses letters A-F

Question 5

Why do we use hex?

Answer 5

• easier to remember a hex value than a binary value
• Quicker to write

Question 6

Convert FF to denary

Answer 6

15 x 16 = 240
15 x 1 = 15
240+15 = 255

Question 7

Convert 212 to hex

Answer 7

1101 0100

13 = D 4
D4