AI engineering glossary · Computing foundations
What is octal?
Octal (also called Base 8): A base-8 number system using digits 0 to 7, in which each digit stands for three bits. It survives mainly in Unix file permission notation.
Octal: an example
The octal value 755 is a common Unix permission setting, where 7 means read, write and execute.
Related terms
More Computing foundations terms
Where you learn it
Octal is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.