Y8 Data representation

Which unit of data is the biggest?

• Kilobyte

• Megabyte

• Gigabyte

How many bit are there in a byte?

• 8

• 4

• 2

What denary number does this binary represent: 0101 ?

• 3

• 4

• 5

Add these binary numbers together: 0110 + 1001. What is the result?

• 1111

• 1010

• 0110

Which of the following best describes ASCII?

• A number set

• A character set

• A symbol set

What is each pixel in a bitmap image represented by?

• A binary code

• Programming code

• Machine code

How many colours can be represented in a 1 bit image?

• 1

• 2

• 3

How many colours can be represented in a 2 bit image?

• 2

• 3

• 4

IF the character is represented by the denary number 4, what is the binary code?

• 0001

• 0100

• 1100

Computers do not understand analogue sound. What must a computer system convert analogue sound to?

• Digital

• Sound waves

• Analogue