| Char | DEC | Hex | Binary | Char | DEC | Hex | Binary |
|---|
Every character has an ASCII code — a number from 0–127 (e.g. A = 65, a = 97). These are the building blocks.
Hex (base-16) uses digits 0–9 and A–F. Each ASCII byte maps to exactly 2 hex digits (e.g. A → 41). Used everywhere in debugging and networking.
Binary (base-2) is the raw machine language. Each ASCII byte becomes 8 bits (e.g. A → 01000001). CPUs think in binary!
All conversions go through the ASCII decimal value as a pivot. ASCII ↔ Decimal ↔ Hex ↔ Binary — they are all the same number in different bases.