CS02-03 Computer Science Watch
Character codes run in order
Subscribe on YouTubeLike this lesson on YouTube
In this lesson
In this video you'll learn about character codes run in order for GCSE Computer Science, with worked examples and the mistakes examiners report. By the end you'll be able to explain that character codes are commonly grouped and run in sequence within an encoding table, and work out an unknown code from a known one, in denary and in binary, without a table.
What it covers
- 0:55 The codes run in order, in denary
- 3:31 Three runs, and the gaps between them
- 5:28 Staying in binary
- 7:42 What the order
- 8:36 Exam technique
Key words
For: AQA GCSE 8525, Edexcel GCSE 1CP2, OCR GCSE J277
On the specification
| Board | Spec | Statement |
|---|---|---|
| AQA GCSE 8525 | 3.3.5 | Character encoding |
| Edexcel GCSE 1CP2 | 2.2.1 | Explain how computers encode characters using 7-bit ASCII. |
| OCR GCSE J277 | 1.2.4 | Data storage - Numbers |
For teachers
This GCSE Computer Science lesson teaches character codes run in order. By the end, students should be able to explain that character codes are commonly grouped and run in sequence within an encoding table, and work out an unknown code from a known one, in denary and in binary, without a table. It works through four worked examples and the mistakes examiners report.