AQA A’Level SLR11 Floating point representation
About this video
AQA Specification Reference
AS Level 3.5.4.4
A Level 4.5.4.4
Binary must be able to represent a wide range of numbers, not just positive and negative whole numbers, but numbers with a fractional part such as 7.25. In this video we show you how this is achieved with a concept called floating point representation.
Key questions:
- How does a computer store fractions (real numbers)?
- What is the difference between fixed-point and floating-point binary representation?
00:00 Floating point representation
00:13 Intro
00:18 Recap- storing binary integers
00:50 Representing fractional numbers using fixed-point binary
03:31 Representing fractional numbers using floating-point binary
06:28 Example 1
08:09 Example 2
08:48 Example 3
10:07 Key questions
10:21 Outro
Last updated: 08.05.25
