Compu-pedia Glossary q-r

Qwerty	A keyboard whose top row of letter keys starts with the letters Q, W, E, R, T, Y.
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.
read-only	You can get the information, but you can't change it. For example, the contents of a ROM chip.
reboot	To restart a computer, usually because of a crash. See boot.
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.
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.