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Learning objective

Character form of a decimal digit: Differentiate between the character code representation of a decimal digit and its pure binary representation. 68

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Topic

Information coding systems

Subtopic

Character form of a decimal digit

Aqa A Level Computer ScienceFundamentals of data representation

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Quick explanation

Character form of a decimal digit: Differentiate between the character code representation of a decimal digit and its pure binary representation. 68

  • This point belongs to Information coding systems, especially Character form of a decimal digit.
  • You need to be able to character form of a decimal digit: Differentiate between the character code representation of a decimal digit and its pure binary representation. 68.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Why it matters

This objective helps connect Character form of a decimal digit to exam-style questions, flashcards, and revision notes for Information coding systems.

Quick student answer

A system uses the character code 00110100 for the character '4'. Which is the pure binary representation of the numerical value four?

Direct answer

0100

Key terms

  • Character code: A binary representation assigned to a character, including a character that displays as a decimal digit.
  • Pure binary representation: A binary representation used to store a numerical value rather than a character symbol.

Common trap

Assuming a digit character is the same as its value: Identify whether the data is text or a number. A character code for '7' represents the character; the numerical value 7 has its own pure binary representation.

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