NEC VERSA VXi, Service And Reference Manual

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2 Glossary
C
CD read/write drive
The CD read/write drive loads and starts programs from a compact disc (CD) or plays your
audio CDs. It also writes information to a CD.
CD-ROM drive
Compact Disc Read-Only Memory. A computer-controlled device that reads high-capacity
optical discs and sends the output to the computer.
clock
Electronic timer used to synchronize computer operations.
CMOS
Complementary Metal Oxide Semiconductor. A chip that contains nonvolatile memory in
the NEC Versa. CMOS is backed up by an internal lithium battery that preserves
clock/calendar data and system configuration parameters stored in CMOS.
cold boot
Process of starting up the computer by turning on the power. If power is already on, the
process means to turn off the computer and turn it on again. A cold boot reinitializes all
devices.
crt
Cathode-Ray Tube. A type of display screen used in desktop monitors. It forms the screen
image using tiny dots called pixels. See also LCD.
cursor
A movable image on the display screen that indicates where the next entered data appears.
D
diskette
A thin flexible platter coated with a magnetic material for storing information.
diskette drive
A magnetic drive that writes on and retrieves data from a diskette.
DSTN
Double-Scan Super-Twisted Nematic. A type of technology used in some NEC Versa LCD
screen displays.
E
enhanced VGA
A video interface that offers more colors or higher resolution than VGA.
extended RAM
The area of RAM above the first megabyte of memory in the system available for
enhancing system performance.