1640s, from French crayon "pencil" (16c.), originally "chalk pencil," from craie "chalk," from Latin creta "chalk, pipe-clay," of unknown origin. Not now considered to mean "Cretan earth," as once was believed.
1. Someone who works on Craysupercomputers. More specifically, it implies a programmer, probably of the CDC ilk, probably male, and almost certainly wearing a tie (irrespective of gender). Systems types who have a Unix background tend not to be described as crayons. 2. A computron that participates only in number crunching. 3. A unit of computational power equal to that of a single Cray-1. There is a standard joke about this usage that derives from an old Crayola crayon promotional gimmick: When you buy 64 crayons you get a free sharpener. [Jargon File] (1994-10-13)