NUXI problem (/nuk´see pro´bləm/ n.)

Refers to the problem of transferring data between machines with differing byte-order. The string

UNIX

might look like

NUXI

on a machine with a different byte sex (e.g., when transferring data from a little-endian to a big-endian, or vice-versa). See also middle-endian, swab, and bytesexual.