| n. | 1. | (Paleon.) One of the Dinosauria. |
| Noun | 1. | dinosaur - any of numerous extinct terrestrial reptiles of the Mesozoic era |
| 1. | dinosaur - Any hardware requiring raised flooring and special power.
Used especially of old minicomputers and mainframes, in
contrast with newer microprocessor-based machines. In a famous quote from the 1988 Unix EXPO, Bill Joy compared the liquid-cooled mainframe in the massive IBM display with a grazing dinosaur "with a truck outside pumping its bodily fluids through it". IBM was not amused. Compare big iron; see also dinosaurs mating. | ||
| 2. | dinosaur - [IBM] A very conservative user; a zipperhead. |