Toshiba protege r930-s9321 Manuel D’Utilisation

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Random Access Memory—See RAM.

Read-Only Memory—See ROM.

reboot—See boot, restart.

removable disk—A disk that can be removed from a disk drive. A Flash 

drive is one example of a removable disk.

resolution—A measure of the sharpness of the images that can be 

produced by a printer or displayed on a screen. For a printer, 
resolution is expressed in dots per inch (dpi). For a screen, it is 
expressed as the number of pixels available horizontally and 
vertically. 

restart—Synonymous with reboot. To reset the computer by reloading 

the operating system without turning the computer off. See also 
boot.

RGB (Red, Green, Blue) monitor—A monitor that reproduces all 

colors by mixing red, green, and blue light in various combinations.

RJ11 connector—A modular connector used on most U.S. telephone 

systems and direct-connect modems. The RJ11 connector is a 
6-wire connector.

RJ45 connector—An eight-wire connector used to connect a computer 

to a network.

ROM (Read-Only Memory)—Non-volatile memory that can be read 

but not written to. Non-volatile here means that information in ROM 
remains whether or not the computer is receiving power. This type 
of memory is used to store your computer’s BIOS, which is 
essential instructions the computer reads when you start it up. See 
also BIOS, memory. Compare RAM.

Secure Digital (SD)—A small, portable, non-volatile memory card used 

to store and transfer data between digital products, providing 
encryption capability for content security.

select—To highlight or otherwise specify text, data, or graphics with the 

intent to perform some operation on it.

serial—Processes that occur one at a time. In communications, it means 

the transmission of one bit at a time sequentially over a single 
channel. On your computer, the serial port provides a serial interface 
between the computer and an appropriate device. Compare parallel.