Data Representation

What is Image Resolution?

• The number of pixels per inch
• how a picture appears on the screen
• How clear a picture is

What does colour depth mean?

• It refers to the number of bits used to represent the colour.
• It refers to how deep the colours go
• it refers to the number of bytes in the colours

How many colours do we get from 2 bits

• 2 colours
• 4 colours
• 8 colours
• 24 colours

How many colours do we get from 3 bits?

• 2 colours
• 4 colours
• 8 colours
• 24 colours

how many colours do we get from 4 bits

• 2
• 4
• 8
• 16

When a picture becomes blurry, what is the key-term for descibing what the picturehas become?

• Pick up truck
• Pixie letters
• Pixar
• Pixelated

When we have a 'one-bit' colour, which are the only two binary numbers that are possibilities?

• 00 and 11
• 000 and 111
• 0 and 1
• 0000 and 1111

A pixel is the _______ part of an image.

• Smallest
• Largest

The colour of a pixel can be stored as a _______ number

• Unicode
• Hex
• Binary
• ASCII

Each pixel is displayed using a combination of what three colours?

• Blue, green and purple
• Red, grey and white
• Red, green and blue
• White, red and blue