= P =
PC-ism /P-C-izm/ n.
A piece of code or coding technique that takes advantage of the unprotected single-tasking environment in IBM PCs and the like running DOS, e.g., by busy-waiting on a hardware register, direct diddling of screen memory, or using hard timing loops. Compare ill-behaved, vaxism, unixism. Also, `PC-ware' n., a program full of PC-isms on a machine with a more capable operating system. Pejorative.
--The Jargon File version 4.3.1, ed. ESR, this entry manually entered by rootbeer277.