Aspects


vs


Hex

Hexadecimal (also base 16, or hex) is the base-16 positional numeral system, using the 16 symbols 0–9 and A‒F.

Octal

The octal numeral system, or oct for short, is the base-8 numeral system, using the digits 0 to 7

Others

Quality Example
Less error-prone

"The octal encoding mechanism is less error-prone than hex so i ll demonstrate using octal"

from question "Telnet Session using Expect Module fails to send command ctrl+A"

More popular

"Apparently octal format was more popular than hex format"

from question "Why fcntl() flag values are defined in Octal format & how this function works for blocking/non-blocking sockets?"

"From what i understand octal was more popular than hex among users of 18-bit architectures since a word would be exactly 6 octal digits"

from question "Can you encode values expressed as binary digits directly in the c-family of languages?"

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