This key facts covers Number Systems Comparison within Binary & Hex for GCSE Computer Science. Revise Binary & Hex in Memory & Storage for GCSE Computer Science with 15 exam-style questions and 22 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 4 of 14 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 4 of 14
Practice
15 questions
Recall
22 flashcards
Number Systems Comparison
| System | Base | Digits Used | Used For |
|---|---|---|---|
| Denary (Decimal) | Base 10 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 | Human counting, everyday numbers |
| Binary | Base 2 | 0, 1 | Computer storage, processing, machine code |
| Hexadecimal (Hex) | Base 16 | 0-9, A, B, C, D, E, F | Memory addresses, colors (RGB), MAC addresses, error codes |
Hexadecimal Digit Values:
Hex: 0 1 2 3 4 5 6 7 8 9 A B C D E F Denary: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15