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CS01-07 Computer Science Watch

Overflow

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In this lesson

In this video you'll learn about overflow for GCSE Computer Science.

By the end: Explain overflow in relation to the number of bits available to store a value, and identify when a binary addition has overflowed.

What it covers

  1. 0:51 Overflow: the fixed container
  2. 2:49 The worked addition
  3. 5:17 Your turn, spot the overflow
  4. 7:04 Overflow in a running system
  5. 8:41 Exam technique

Key words

overflow8-bittoo largebits available

For: Edexcel GCSE 1CP2, OCR GCSE J277

On the specification

BoardSpecStatement
Edexcel GCSE 1CP22.1.5Explain overflow in relation to the number of bits available to store a value.
OCR GCSE J2771.2.4Data storage - Numbers
For teachers

This GCSE Computer Science lesson teaches overflow. By the end, students should be able to explain overflow in relation to the number of bits available to store a value, and identify when a binary addition has overflowed. It works through two worked examples and the mistakes examiners report.