A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

RAM	Random Access Memory. Computer memory used to temporarily hold programs and data. RAM is stored in ICs that plug into the system board, or into an expansion card which in turn plugs into slots on the system board. There are two basic types of RAM chips: Static RAM (SRAM) and dynamic RAM (DRAM). SRAM chips are faster, but are also more expensive than DRAM.
random access	Able to read any location directly; without having to read sequentially to the location.
resolution	How fine the detail is on a screen or printout. Screen resolution is measured in pixels across, pixels down, and number of colors. Printer resolution is measured in dpi (qv) or with vague terms like draft, letter quality, and near letter quality.
RISC	Reduced Instruction Set Computer. Refers to a microprocessor design that uses a relatively simple architecture, with fewer built-in commands than a CISC chip. The benefit is a significant increase in speed, enough to make up for not having as many instructions.
ROM	Read-Only Memory. Computer memory used to permanently store parts of the computer's or expansion cardµs operating system. ROM chips can contain instructions and data. Informally means any storage which can be read but not changed.
router	A network device that sends messages by the best route, especially over large networks.