Octal

usgb/ˈɑktəl/
adjective

Octal is a numeral system that uses base 8 as its base. It uses digits from 0 to 7.

In octal representation, the number seventeen is written as twenty-one.
Visual representation of "octal" - Octal is a numeral system that uses base 8 as its base. It uses digits from 0 to 7.

Often appears as...

  • octal number system
  • octal digits

Usage tips

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General

Definition 1 of 1
Visual representation of "octal"
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Understanding Base Systems

Octal is part of a family of numeral systems, including binary and decimal, which can be useful for comparisons and conversions.

Illustration for Understanding Base Systems
When writing code, knowing how to convert between octal and other bases is crucial.
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Use in Programming

In many programming languages, especially older ones, octal values are represented with a leading zero.

Illustration for Use in Programming
Being familiar with octal values can help in debugging issues related to data storage.
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Technical Applications

Octal is used in UNIX file permissions, where three digits represent read, write, and execute permissions.

Illustration for Technical Applications
Using octal values can simplify the representation of complex permission settings.
Visual representation of the word "Octal"

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