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Oak ComputingTest · Computing

Bitmap file size calculation

The starter and exit quiz of the lesson “Bitmap file size calculation”, from the unit “Representation of text, images and sound” (Year 10 Computing) by Oak National Academy.

Free to use. Edit it, share it and hand it out to your students.

Oak National Academy

12 questions

  1. What is the basic unit of data in a computer system?
  2. What does a character set do?
  3. Which character encoding system uses up to 32 bits per character?
  4. Match the terms to their definitions:
  5. How many states are possible with a sequence of 4 bits?
  6. What does colour depth quantify?
  7. Place the following file sizes in order from smallest to largest:
  8. What determines the file size of a bitmap image?
  9. Match the terms to their definitions:
  10. What happens when the colour depth of an image is increased?
  11. What is the effect of increasing the resolution of an image?
  12. Which of the following is a trade-off when reducing image resolution?

License: OGL

Bitmap file size calculation · Examplary