PC-ism
/P-C-izm/ A piece of code or coding technique that takes
advantage of the unprotected single-tasking environment in
{IBM PCs} and the like, e.g. by {busy-wait}ing on a {hardware
register}, direct diddling of {screen memory} or using hard
timing loops. Compare {ill-behaved}, {vaxism}, {Unixism}.
[{Jargon File}]