Number System

Which of these are binary ? ( answer maybe more than one)

• 0

• 1

• 2

• 3

Which of these are hexadecimal digits? ( answer maybe more than one )

• F

• G

• 6

• 0

• H

How many different values can be represented using 8 bits?

• 128

• 255

• 256

• 999

What is the binary equivalent of the hexadecimal digit E?

• 1110

• 1111

• 0110

• 0111

Computers store all data using...

• Binary

• Hexadecimal

• Decimal

• Octal

Hexadecimal is used because...

• It takes up less space

• It is easier for computers to process

• It is easier for people to read

• It is quicker to write data in

What is the decimal equivalent of the binary number 00100111?

• 39

• 57

• 228

• 7

What is the decimal equivalent of the hexadecimal number 4B?

• 75

• 180

• 31

• 255

What is the binary equivalent of the decimal number 101?

• 01100101

• 01100011

• 11110101

• 00001101

What is the largest 2-digit hexadecimal value?

• FF

• 99

• 9F

• F9