Big Gray Wall
= B =
Big Red Switch
big iron n.
[common] Large, expensive, ultra-fast
computers. Used generally of number-crunching supercomputers
such as Crays, but can include more conventional big commercial
IBMish mainframes. Term of approval; compare heavy metal,
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.