RDRAM
Rambus DRAM is a revolutionary type of DRAM that uses a 16-18 bit data path and is designed to operate with FSB speed of 800MHz, producing a burst transfer rate of 1.6 gigahertz.

FSB
Front Side Bus - The main highway for data in a PC. It connects the processor, chip set, DRAM, and AGP socket. FSB is described in terms of its width in bits and its speed in MHz.

CRIMM
Continuity RIMM - For use in Direct Rambus RIMM Module configurations. The serial nature of Direct Rambus RIMM technology requires that all memory expansion sockets be occupied in order to complete the transmission line to the termination resistors. For example, a three socket configuration where only two Direct Rambus RIMM modules are used would require the use of one continuity module. Continuity and RIMM modules can be mixed in any order. All signal and control traces are matched for length and all traces on the continuity board are impedance matched to 28 ohms.