This comparison covers Quick Conversion Reference within Storage Units for GCSE Computer Science. Revise Storage Units in 3.3 Data Representation for GCSE Computer Science with 15 exam-style questions and 18 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 4 of 10 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.
Quick Conversion Reference
| Unit | Binary (1024) | Decimal (1000) | In Bytes |
|---|---|---|---|
| Byte (B) | 1 B | 1 B | 1 byte |
| Kilobyte (KB) | 1,024 B | 1,000 B | ~1 thousand |
| Megabyte (MB) | 1,024 KB | 1,000 KB | ~1 million |
| Gigabyte (GB) | 1,024 MB | 1,000 MB | ~1 billion |
| Terabyte (TB) | 1,024 GB | 1,000 GB | ~1 trillion |
| Petabyte (PB) | 1,024 TB | 1,000 TB | ~1 quadrillion |
Practice questions for Storage Units
How many bits make up one nibble?
Explain what is meant by colour depth and describe how increasing the colour depth affects both the image quality and the file size.