CS02-01 Computer Science Watch
Bits, bytes and the units of storage
Subscribe on YouTubeLike this lesson on YouTube
In this lesson
In this video you'll learn about bits, bytes and the units of storage for GCSE Computer Science, with worked examples and the mistakes examiners report. By the end you'll be able to state that a bit is the fundamental unit of information and a byte is a group of 8 bits, name and order the units of storage, convert between them, and say which convention each exam board uses.
What it covers
- 0:57 Bit, byte, nibble, and the letter
- 3:29 The decimal ladder
- 4:47 The board conflict
- 7:57 Worked conversions
- 10:17 Your turn: ordering
- 12:18 Exam technique
Key words
For: AQA GCSE 8525, Edexcel GCSE 1CP2, OCR GCSE J277
On the specification
| Board | Spec | Statement |
|---|---|---|
| AQA GCSE 8525 | 3.3.3 | State that a bit is the fundamental unit of information and a byte is 8 bits, use the decimal prefixes kilo, mega, giga and tera, and compare quantities of bytes. |
| Edexcel GCSE 1CP2 | 2.3.1 | Data storage and compression |
| OCR GCSE J277 | 1.2.3 | Units |
For teachers
This GCSE Computer Science lesson teaches bits, bytes and the units of storage. By the end, students should be able to state that a bit is the fundamental unit of information and a byte is a group of 8 bits, name and order the units of storage, convert between them, and say which convention each exam board uses. It works through four worked examples and the mistakes examiners report.