Bedienungsanleitung Dell Dimension C521 (Seite 132 von 140) (Englisch)

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132 Glossary

memory address — A specific location where data is

temporarily stored in RAM.

memory mapping — The process by which the computer

assigns memory addresses to physical locations at start-up.

Devices and software can then identify information that

the processor can access.

memory module — A small circuit board containing

memory chips, which connects to the system board.

MHz — megahertz — A measure of frequency that equals

1 million cycles per second. The speeds for computer

processors, buses, and interfaces are often measured in

MHz.

Mini PCI — A standard for integrated peripheral devices

with an emphasis on communications such as modems

and NICs. A Mini PCI card is a small external card that is

functionally equivalent to a standard PCI expansion card.

Mini-Card — A small card designed for integrated

peripherals, such as communication NICs. The Mini-

Card is functionally equivalent to a standard PCI

expansion card.

modem — A device that allows your computer to

communicate with other computers over analog

telephone lines. Three types of modems include: external,

PC Card, and internal. You typically use your modem to

connect to the Internet and exchange e-mail.

module bay — See media bay.

ms — millisecond — A measure of time that equals one

thousandth of a second. Access times of storage devices

are often measured in ms.

network adapter — A chip that provides network

capabilities. A computer may include a network adapter

on its system board, or it may contain a PC Card with an

adapter on it. A network adapter is also referred to as a

NIC (network interface controller).

NIC — See network adapter.

notification area — The section of the Windows taskbar

that contains icons for providing quick access to programs

and computer functions, such as the clock, volume

control, and print status. Also referred to as system tray.

ns — nanosecond — A measure of time that equals one

billionth of a second.

NVRAM — nonvolatile random access memory — A type

of memory that stores data when the computer is turned

off or loses its external power source. NVRAM is used for

maintaining computer configuration information such as

date, time, and other system setup options that you

can set.

optical drive — A drive that uses optical technology to

read or write data from CDs, DVDs, or DVD+RWs.

Example of optical drives include CD drives, DVD drives,

CD-RW drives, and CD-RW/DVD combo drives.

parallel connector — An I/O port often used to connect a

parallel printer to your computer. Also referred to as an

LPT port.

partition — A physical storage area on a hard drive that is

assigned to one or more logical storage areas known as

logical drives. Each partition can contain multiple logical

drives.

PC Card — A removable I/O card adhering to the

PCMCIA standard. Modems and network adapters are

common types of PC Cards.

PCI — peripheral component interconnect — PCI is a

local bus that supports 32-and 64-bit data paths,

providing a high-speed data path between the processor

and devices such as video, drives, and networks.

PCI Express — A modification to the PCI interface that

boosts the data transfer rate between the processor and

the devices attached to it. PCI Express can transfer data at

speeds from 250 MB/sec to 4 GB/sec. If the PCI Express

chip set and the device are capable of different speeds,

they will operate at the slower speed.

PCMCIA — Personal Computer Memory Card

International Association — The organization that

establishes standards for PC Cards.

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