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OCR (KS4)

KS3 & KS4 computing curriculum

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Computing
Year 8

Data representation: text and numbers

6 lessons

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  • Data and information

Description

In this unit pupils will be introduced to binary digits and how they can be used to represent text and numbers. Pupils will perform conversions between binary and decimal numbers and how binary can be used to represent characters. They will explore how cryptography can be used to protect data.

At this stage, pupils are ready to move beyond simply using technology to understanding how it works at its core. Binary underpins everything a computer does, from processing text and numbers to storing data. By comparing it with the familiar decimal system, pupils can begin to see how computers represent information differently from humans. Learning about binary now gives pupils the insight to make sense of everyday technology, such as file sizes measured in kilobytes, megabytes and gigabytes, helping them become more informed and confident users of digital systems.

  1. Representing information
  2. Representing characters
  3. Binary digits
  4. Numbers in binary
  5. Measurements of data
  6. Turing's mug cryptography challenge
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