Memory & StorageKey Facts
Hexadecimal: The Programmer's Shorthand
Part of Binary & Hex — GCSE Computer Science
This key facts covers Hexadecimal: The Programmer's Shorthand 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 8 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 8 of 14
Practice
15 questions
Recall
22 flashcards
Hexadecimal: The Programmer's Shorthand
Why Hexadecimal is Used:
- Compact: 1 hex digit = 4 binary bits. "FF" = "11111111" (much shorter!)
- Human-readable: Easier to spot patterns and errors than long binary strings
- Memory addresses: 0x7FFF is easier than 0111111111111111
- Colors: #FF5733 (red=FF, green=57, blue=33)
- MAC addresses: A4:5E:60:E2:7B:3C
Hex Notation:
- Prefix with "0x" or "#" to indicate hex: 0xAF, #FF5733
- Sometimes subscript: 2F16