Octal to Binary
Expand octal digits into 3-bit binary groups for permission and embedded register analysis.
Octal digits 0–7.
Binary representation.
Translate octal values into bit-level binary. Each octal digit maps to a 3-bit group, so it is easy to verify file permissions or read legacy embedded values on a per-bit basis.
Why three bits per octal digit?
Octal is base 8 = 2³, so every digit corresponds to exactly three binary bits.