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Oak ComputingTest · Computing

Representing characters

The starter and exit quiz of the lesson “Representing characters”, from the unit “Data representation: text and numbers” (Year 8 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 does the word representation mean in computing?
  2. What do we call something that stands for something else, like an emoji or a road sign?
  3. Put these actions in order for representing a picture on a computer:
  4. Which of these is a reason to use different representations for different situations?
  5. Match each keyword to its meaning:
  6. What is the name for the system of 0s and 1s that computers use to represent all types of information?
  7. Match each example to the correct keyword:
  8. What is the main purpose of a character coding scheme like ASCII?
  9. In computing, how is every piece of information ultimately represented?
  10. Put these steps in order for encoding and decoding a message:
  11. When measuring the length of a representation, what should you include?
  12. If the word "Hello" is written in Morse code as ".... . .-.. .-.. ---", what is the representation length of this code?

License: OGL

Representing characters · Examplary