___________
Computing
Data representation: images and sound

Starter quiz

  • What is the smallest unit of data in a computer system?
    • 'bit' ✓
  • What does resolution affect in an image?
    • 'quality' ✓
  • Match the term with its definition:
    • pixel
      ⇔
      a single element of an image ✓
    • sample rate
      ⇔
      number of sound samples per second ✓
    • resolution
      ⇔
      image clarity in pixels ✓
    • colour depth
      ⇔
      number of bits for colour representation ✓
  • What does the term 'intensity' refer to in digital images?
    • the file size of the image
    • the resolution of the image
    • the format of the image
    • the strength of a colour  ✓
  • What effect does increasing sample resolution have on a sound file?
    • decreases file size
    • increases file size and quality  ✓
    • changes the colour of the sound
    • alters the file format
  • Arrange the following in order of increasing file size.
    • 1
      ⇔
      low resolution, low colour depth
    • 2
      ⇔
      high resolution, low colour depth
    • 3
      ⇔
      high resolution, high colour depth
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