Acronym for Routing Information Protocol.
RIP is an simplistic interior distance vector routing protocol. RIPv1 in particular is very hidious, however RIP is generally used because it's just so easy to setup and "just works".
Acronym for Raster Image Processor
A hardware -software combination that converts a vector image into a bit-mapped image. All PostScript printers contain a RIP that converts the PostScript commands into bit-mapped pages that the printer can output.
3 pages link to RIP: