Understanding Number Systems in Computers

What type of data can computers understand?

• Characters

• Numbers

• Words

• Symbols

Which number system uses only two digits?

• Hexadecimal

• Binary

• Octal

• Decimal

What is the base of the Decimal number system?

• 10

• 8

• 2

• 16

Which symbols are used in the Hexadecimal system?

• 0-9, A-F

• 0-7

• 0-9

• A-F

What is the main reason computers use the Binary system?

• It is the most complex

• It is the simplest to implement

• It is the most familiar

• It uses more symbols

How many digits are used in the Octal number system?

• 7

• 8

• 6

• 9

What does each digit in a positional number system represent?

• A letter

• A random value

• A power of the base

• A fixed value

Which number system is often used in computer programming?

• Hexadecimal

• Decimal

• Octal

• Binary

What is the first step in converting a Decimal number to Octal?

• Divide by 8

• Add 8

• Subtract 8

• Multiply by 8

In the Binary system, what does the rightmost digit represent?

• 2^0

• 2^1

• 2^3

• 2^2