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Candidates should be able to:

  • explain the use of binary codes to represent characters
  • explain the term character set
  • describe with examples (for example ASCII and Unicode) the relationship between the number of bits per character in a character set and the number of characters which can be represented.

How are binary codes used to represent characters?

Each character (such as uppercase and lowercase letters, numbers and symbols) must be stored as a unique number called a character code if a computer system is to be able to store and . . .

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