KS4 Data Representation
The KS4 Data Representation project is consists of 5 different sessions allowing you develop your knowledge of how data is used in computers and how we represent that data as binary using a combinations of 1s and 0s. By the end of the project you will have looked at binary numbers and how binary values are used to represent different types of media.
Each session in the project has its own folder with all the files and worksheets that you need to complete it.
You need to work through each session in order to complete the project. Each session has a set of instructions for you to follow with guidance on the different documents you need and what you will have to complete.
Resources in this collection were originally published by via the CAS Community.
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Session 1 - Introduction to Binary Digits
This session introduces you to the use of binary digits to represent basic images and the key terms for capacity. During the session you will investigate 4-bit binary numbers and look at the patterns in the numbers.
- Open Slides and read through slides 2 and 3 to get an understanding of the session that...
Session 3 - Digital Images
This is a short session looking at the structure of pixels in a digital image. It will help you understand how the number of bits used per pixel determines the number of colours that are available.
- Open the Information document and read through the information about digital images. Look at how using...
Session 4 - Sampling Sound
This session explains how sound is converted from a continuous analogue sound that we hear in the real world and converts it into a digital format of 1s and 0s that can be used and played back by a computer. The session has a set of slides to read through and a worksheet.
- Read slides 1 and 2 . This...
Session 5 - Data Compression Algorithms
This session looks at how images and sound use compression to reduce their size when storing them or transferring them over the Internet or on devices to save space. In the session you will have a look at how an algorithm can be used to compress this data.
All the answers are to be written in the workbook....
Pages
| Subject(s) | Computing |
|---|---|
| Age | 16-19 |
| Published | 2020 to date |
| Published by | |
| Direct URL | https://www.stem.org.uk/cxgm5h |
