Since I know nothing about SGIs...
Wajht is a TRAM in this context? (I can think of 2 meanings of the term,
the obvious one associated iwht public transport, and the less common one
associated with a certain microcprocessor, but I can't think either are
applicable here).
Tony, TRAMs are RAM modules used in the octane video board. The octane
video is accelerated for "plain" surfaces, but not texturized. Adding the
pair of TRAM modules on this video board, you make it capable of rendering
3D graphics with textured surfaces.