Data Representation – Images

What do we call the smallest unit of data that can be represented in an image? (1-4)

• Pixel
• Dot
• Colour
• Bit

What is meant by Colour Depth? (4-6)

• Number of pixels in the image
• The number of colours available for each pixel
• How pixelated the image is

If you increase the colour depth then the file size will decrease? (4-6)

• True
• False

How many colours can be represented with a 4 bit colour depth? (7-9)

• 2
• 4
• 16
• 256

What is the term used to define what must be known about a bitmap,for it to be represented accurately? (4-6)

• Microdata
• Metadata
• Megadata

In modern technology what unit of measurement would be used forscreen size? (4-6)

• Pixels per inch (PPI)
• PPI) 
• Pixels per metre (PPM)

Which of the following is not stored as Metadata about an image? (6-9)

• Height
• Colour Depth
• Resolution
• Number of people in the image

Which of the following is not an image file? (4-6)

• PNG
• JPEG
• Bitmap
• MPEG

What three colours are used to produce a broad array of colours in a computer system? (1-4)

• Green, Red, Orange
• Red, Green, Blue
• Yellow, Green, Red

 What is the name of the type of graphic that uses shapes of solid colour? (6-8)

• Raster
• GIF
• JPEG
• Vector