AIDS = A = airplane rule
AIDX /ayd'k*z/ n.
Derogatory term for IBM's perverted version of Unix, AIX, especially for the AIX 3.? used in the IBM RS/6000 series (some hackers think it is funnier just to pronounce "AIX" as "aches"). A victim of the dreaded "hybridism" disease, this attempt to combine the two main currents of the Unix stream (BSD and USG Unix) became a monstrosity to haunt system administrators' dreams. For example, if new accounts are created while many users are logged on, the load average jumps quickly over 20 due to silly implementation of the user databases. For a quite similar disease, compare HP-SUX. Also, compare Macintrash, Nominal Semidestructor, ScumOS, sun-stools.
--The Jargon File version 4.3.1, ed. ESR, this entry manually entered by rootbeer277.