refresh rate — The frequency, measured in Hz, at which your screen's horizontal lines are recharged (sometimes also referred to as its vertical frequency). The higher the refresh rate, the less video flicker can be seen by the human eye.
resolution — The sharpness and clarity of an image produced by a printer or displayed on a monitor. The higher the resolution, the sharper the image.
RFI — radio frequency interference — Interference that is generated at typical radio frequencies, in the range of 10 kHz to 100,000 MHz. Radio frequencies are at the lower end of the electromagnetic frequency spectrum and are more likely to have interference than the higher frequency radiations, such as infrared and light.
ROM —
RPM — revolutions per minute — The number of rotations that occur per minute. Hard drive speed is often measured in rpm.
RTC — real time clock —
RTCRST —
S
SAS — serial attached SCSI — A faster, serial version of the SCSI interface (as opposed to the original SCSI parallel architecture).
SATA — serial ATA — A faster, serial version of the ATA (IDE) interface.
ScanDisk — A Microsoft utility that checks files, folders, and the hard disk’s surface for errors. ScanDisk often runs when you restart the computer after it has stopped responding.
SCSI — small computer system interface — A
SDRAM — synchronous dynamic
serial connector — An I/O port often used to connect devices such as a handheld digital device or digital camera to your computer.
