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Character Encoding & Error Checking

AQA 75174.5.5A-levelLesson packSubscription
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  • 11 questions
  • 31 marks
  • about 40 minutes
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Question types: short answer, multiple choice, multi-part, fill the gap, matching.

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About this resource

Differentiate the character-code representation of a decimal digit from its pure binary representation, describe ASCII and Unicode and explain why Unicode was introduced, and describe and apply parity bits, majority voting, checksums and check digits.

22 slides.

Lesson outline

  1. Retrieval Starter
  2. Keyword Glossary
  3. The Character Form of a Decimal Digit vs Pure Binary
  4. Check: Character Code or Pure Binary?
  5. I-Do: The Pattern Behind ASCII Digit Codes
  6. We-Do: Practice — Character Code vs Pure Binary
  7. ASCII — American Standard Code for Information Interchange
  8. Explore: ASCII Character Codes
  9. Unicode — and Why It Was Introduced
  10. Check: Why Was Unicode Introduced?
  11. Error Checking: Parity Bits
  12. Practice — Even Parity Bit
Unit bundlePaper 2
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