1. hexadecimal .
2. A 6-pack of anything (compare quad ). Neither usage has anything to do with magic or black art , though the pun is appreciated and occasionally used by hackers. True story: As a joke, some hackers once offered some surplus ICs for sale to be worn as protective amulets against hostile magic. The chips were, of course, hex inverters.
3. < character > The hash character, used to introduce hexadecimal constants in some assembly language s.
[ Jargon File ]
(1995-03-06)