Dell Latitude X300 User Guide - Page 55

Certificate of Authenticity

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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 system 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 microprocessor operations. L1 cache - Primary cache stored inside the microprocessor. L2 cache - Secondary cache which can either be external to the microprocessor or incorporated into the microprocessor architecture. carnet - An international customs document that facilitates temporary imports into foreign countries. Also known as a merchandise passport. CD - compact disc - An optical form of storage media, typically used for audio and software programs. CD drive - A drive that uses optical technology to read data from CDs. CD player - The software used to play music CDs. The CD player displays a window with buttons that you use to play a CD. 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. COA - Certificate of Authenticity - The Windows alpha-numeric code located on a sticker on your computer. You may need the COA to complete the operating system setup or reinstallation. Also referred to as the Product Key or Product ID.

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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 system 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 microprocessor operations.
L1 cache
—
Primary cache stored inside the microprocessor.
L2 cache
—
Secondary cache which can either be external to the microprocessor or incorporated into the microprocessor architecture.
carnet
—
An international customs document that facilitates temporary imports into foreign countries. Also known as a
merchandise passport
.
CD
—
compact disc
—
An optical form of storage media, typically used for audio and software programs.
CD drive
—
A drive that uses optical technology to read data from CDs.
CD player
—
The software used to play music CDs. The CD player displays a window with buttons that you use to play a CD.
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.
COA
—
Certificate of Authenticity
—
The Windows alpha-numeric code located on a sticker on your computer. You may need the COA to complete the operating
system setup or reinstallation. Also referred to as the
Product Key
or
Product ID
.