198
Glossary
bit
— The smallest unit of data interpreted by your computer.
Bluetooth
®
wireless technology
— A wireless technology standard for short-range
(9 m [29 feet]) networking devices that allows for enabled devices to automatically
recognize each other.
boot sequence
— Specifies the order of the devices from which the computer
attempts to boot.
bootable CD
— A CD that you can use to start your computer. In case your hard drive
is damaged or your computer has a virus, ensure that you always have a bootable CD
or floppy disk available. Your
Drivers and Utilities
media is a bootable CD.
bootable disk
— A disk that you can use to start your computer. In case your hard
drive is damaged or your computer has a virus, ensure that you always have a bootable
CD or floppy disk available.
bps
— bits per second — The standard unit for measuring data transmission speed.
BTU
— British thermal unit — A measurement of heat output.
bus
— A communication pathway between the components in your computer.
bus speed
— The speed, given in MHz, that indicates how fast a bus can transfer
information.
byte
— The basic data unit used by your computer. A byte is usually equal to 8 bits.
C
C
— Celsius — A temperature measurement scale where 0° is the freezing point and
100° is the boiling point of water.
cache
— A special high-speed storage mechanism which can be either a reserved
section of main memory or an independent high-speed storage device. The cache
enhances the efficiency of many processor operations.
L1 cache
— Primary cache stored inside the processor.
L2 cache
— Secondary cache which can either be external to the processor or
incorporated into the processor 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).
Summary of Contents for Inspiron 1521
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 1521 Owner s Manual Model PP22L ...
Page 18: ...18 Finding Information ...
Page 32: ...32 About Your Computer ...
Page 46: ...46 Using the Keyboard and Touchpad ...
Page 54: ...54 Using a Battery ...
Page 82: ...82 Using ExpressCards ...
Page 86: ...86 Using the Memory Card Reader ...
Page 100: ...100 Securing Your Computer ...
Page 161: ...Adding and Replacing Parts 161 1 captive screws 2 2 cover 1 2 ...
Page 168: ...168 Adding and Replacing Parts ...
Page 170: ...170 Dell QuickSet Features ...
Page 180: ...180 Getting Help ...
Page 214: ...214 Glossary ...
Page 222: ...222 Index ...