Binary Images

What is a pixel?

• Tiny squares of colour on a screen.
• A fairy like creature thatlives in a forest.
• A whole picture.
• A binary code.

What happens the further you zoom in on a picture?

• The less pixels you can see.
• The more pixels you can see.
• The pixels jump.
• The pixels swap places.

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

How many combinations are there for a '2 bit' colour?

• 8
• 4
• 16
• 32

Which 'bit' image would give the best picture quality?

• 24
• 4
• 8
• 2

What does 'resolution' mean?

• Something you listen to on a computer.
• The posh name for the keys on your keyboard.
• The number of pixels that make up a screen horizontally and vertically.
• Solving an argument.

Which file-type has the largest file size?

• JPEG
• PNG
• GIF
• BMP

When you 'compress' a file, what happens?

• You squash your computer.
• The bitsize reduces and unnecessary information is removed.
• You put a flannel on your computer.
• The file size increases.

Bitmap or 'raster' graphics are made up of _______

• Shapes and lines
• Pixels