Glossary: Dell Latitude D620 User's Guide
battery operating time
The length of time (minutes or hours) that a portable computer battery
powers the computer.
BIOS
basic input/output system A program (or utility) that serves as an interface between the
computer hardware and the operating system. Unless you understand what effect these settings have
on the computer, do not change them. Also referred to as
system setup
.
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
or
ResourceCD
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
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