AI engineering glossary · Computing foundations
What is hexadecimal?
Hexadecimal (also called Hex, Base 16): A base-16 number system using digits 0 to 9 and letters A to F, in which each digit stands for exactly four bits. It is a compact way to write binary values such as colours, memory addresses and byte data.
Hexadecimal: an example
The hex value FF equals 255, and the web colour #FF0000 means full red with no green or blue.
Related terms
More Computing foundations terms
- Hyper-threading
- Hypervisor
- IEEE 754
- Inode
- Instruction cycle
- Instruction set architecture
- Integer overflow
- Inter-process communication
Where you learn it
Hexadecimal is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.