Binary Place Values and Conversion

Part of Binary & Hex · Section 2 of 15

DiagramUnit: 3.3 Data RepresentationGCSE

This diagram covers Binary Place Values and Conversion within Binary & Hex for GCSE Computer Science. Revise Binary & Hex in 3.3 Data Representation for GCSE Computer Science with 16 exam-style questions and 22 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 15 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Binary Place Values and Conversion

Binary place value diagram showing an 8-bit number with place values 128, 64, 32, 16, 8, 4, 2, 1 from left to right (MSB to LSB), with an example conversion of denary to binary and hexadecimal showing the 4-bit grouping shortcut

Practice questions for Binary & Hex

Which of the following correctly describes the hexadecimal number system?

  • A. Base 2, using digits 0 and 1
  • B. Base 8, using digits 0 to 7
  • C. Base 16, using digits 0-9 and letters A-F
  • D. Base 16, using digits 0-9 and letters A-G
1 markfoundation

Explain why hexadecimal is used instead of binary when programmers write memory addresses and colour codes. Give three reasons.

3 marksstandard

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