DELL D600 用户手册

 

 

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. 

 

 

bits per second — The standard unit for measuring data transmission speed. 

 

 

British thermal unit — A measurement of heat output. 

 

 

A communication pathway between the components in your computer. 

 

 

The speed, given in MHz, that indicates how fast a bus can transfer information. 

 

 

The basic data unit used by your computer. A byte is usually equal to 8 bits. 

 

 

Celsius — A temperature measurement system where 0° is the freezing point and 100° is the boiling point of water. 

 

 

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. 

 

 

An international customs document that facilitates temporary imports into foreign countries. Also known as a merchandise passport. 

 

 

compact disc — An optical form of storage media, typically used for audio and software programs. 

 

 

A drive that uses optical technology to read data from CDs. 

 

 

The software used to play music CDs. The CD player displays a window with buttons that you use to play a CD. 

 

 

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 rewritable — A rewritable version of a CD. Data can be written to a CD-RW disc, and then erased and written over (rewritten). 

 

 

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. 

 

 

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. 

 

 

The speed, given in MHz, that indicates how fast computer components that are connected to the system bus operate.  

 

 

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.