Glossary
197
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
.
Consumer IR
— A port on the front of the computer that allows certain software
applications to be controlled by the Dell Travel Remote in some systems. In other
systems, this port allows you to transfer data between the computer and infrared-
compatible devices without using a cable connection.
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.
Summary of Contents for Inspiron 1721
Page 1: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Inspiron 1721 Owner s Manual Model PP22X ...
Page 20: ...20 About Your Computer Front View 4 5 13 3 6 12 11 9 8 7 14 2 1 10 ...
Page 52: ...52 Using a Battery ...
Page 76: ...76 Using Multimedia ...
Page 80: ...80 Using ExpressCards ...
Page 96: ...96 Securing Your Computer ...
Page 166: ...166 Dell QuickSet Features ...
Page 176: ...176 Getting Help ...
Page 194: ...194 Appendix ...
Page 212: ...212 Glossary ...
Page 220: ...220 Index ...
