Dell Latitude D630 XFR User Manual page 99

architecture.
carnet — An international customs document that facilitates temporary imports into foreign countries. Also known as a
merchandise passport.
CD-R — CD recordable — A recordable version of a CD. Data can be recorded only once onto a CD-R. Once recorded, the
data cannot be erased or written over.
CD-RW — CD rewritable — A rewritable version of a CD. Data can be written to a CD-RW disc, and then erased and
written over (rewritten).
CD-RW drive — A drive that can read CDs and write to
CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can
write to CD-R discs only once.
CD-RW/DVD drive — A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD-RW
(rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-
R discs only once.
clock speed — The speed, given in MHz, that indicates how fast computer components that are connected to the system
bus operate.
CMOS — A type of electronic circuit. Computers use a small amount of battery-powered CMOS memory to hold date, time,
and system setup options.
COA — Certificate of Authenticity — The Windows alpha-numeric code located on a sticker on your computer. Also
referred to as the Product Key or Product ID.
Control Panel — A Windows utility that allows you to modify operating system and hardware settings, such as display
settings.
controller — A chip that controls the transfer of data between the processor and memory or between the processor and
devices.
CRIMM — Continuity Rambus In-line Memory Module — A special module that has no memory chips and is used to fill
unused RIMM slots.
cursor — The marker on a display or screen that shows where the next keyboard, touch pad, or mouse action will occur. It
often is a blinking solid line, an underline character, or a small arrow.
D
DDR SDRAM — Double-Data-Rate SDRAM — A type of SDRAM that doubles the data burst cycle, improving system
performance.
DDR2 SDRAM — Double-Data-Rate 2 SDRAM — A type of DDR SDRAM that uses a 4-bit prefetch and other architectural
changes to boost memory speed to over 400 MHz.
device — Hardware such as a disk drive, printer, or keyboard that is installed in or connected to your computer.
device driver — See driver.
DIMM — Dual In-line Memory Module — A circuit board with memory chips that connects to a memory module on the
system board.
DIN connector — A round, six-pin connector that conforms to DIN (Deutsche Industrie-Norm) standards; it is typically
used to connect PS/2 keyboard or mouse cable connectors.
DirectVue – A unique optical technology that combines higher backlit performance or NITS with anti reflective LCD films
and other proprietary optics technology. Result is a Wide Aspect LCD that can be viewed in challenging lighting conditions
including direct sunlight.
disk striping — A technique for spreading data over multiple disk drives. Disk striping can speed up operations that
retrieve data from disk storage. Computers that use disk striping generally allow the user to select the data unit size or
stripe width.
DMA — Direct Memory Access — A channel that allows certain types of data transfer between RAM and a device to bypass
the processor.
docking device — provides port replication, cable management, and security features to adapt your notebook to a desktop
workspace.