Dell Latitude ATG D630 User's Guide - Page 159
DVD+RW drive, Express Service Code
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unit size or stripe width. DMA - direct memory access - A channel that allows certain types of data transfer between RAM and a device to bypass the processor. docking device - provides port replication, cable management, and security features to adapt your notebook to a desktop workspace. DMTF - Distributed Management Task Force - A consortium of hardware and software companies who develop management standards for distributed desktop, network, enterprise, and Internet environments. domain - A group of computers, programs, and devices on a network that are administered as a unit with common rules and procedures for use by a specific group of users. A user logs on to the domain to gain access to the resources. DRAM - dynamic random-access memory - Memory that stores information in integrated circuits containing capacitors. driver - Software that allows the operating system to control a device such as a printer. Many devices do not work properly if the correct driver is not installed in the computer. DSL - Digital Subscriber Line - A technology that provides a constant, high-speed Internet connection through an analog telephone line. dual-core - A technology in which two physical computational units exist inside a single processor package, thereby increasing computing efficiency and multi-tasking ability. dual display mode - A display setting that allows you to use a second monitor as an extension of your display. Also referred to as extended display mode. DVD-R - DVD recordable - A recordable version of a DVD. Data can be recorded only once onto a DVD-R. Once recorded, the data cannot be erased or written over. DVD+RW - DVD rewritable - A rewritable version of a DVD. Data can be written to a DVD+RW disc, and then erased and written over (rewritten). (DVD+RW technology is different from DVD-RW technology.) DVD+RW drive - drive that can read DVDs and most CD media and write to DVD+RW (rewritable DVDs) discs. DVI - digital video interface - A standard for digital transmission between a computer and a digital video display. E ECC - error checking and correction - A type of memory that includes special circuitry for testing the accuracy of data as it passes in and out of memory. ECP - extended capabilities port - A parallel connector design that provides improved bidirectional data transmission. Similar to EPP, ECP uses direct memory access to transfer data and often improves performance. EIDE - enhanced integrated device electronics - An improved version of the IDE interface for hard drives and CD drives. EMI - electromagnetic interference - Electrical interference caused by electromagnetic radiation. ENERGY STAR® - Environmental Protection Agency requirements that decrease the overall consumption of electricity. EPP - enhanced parallel port - A parallel connector design that provides bidirectional data transmission. ESD - electrostatic discharge - A rapid discharge of static electricity. ESD can damage integrated circuits found in computer and communications equipment. expansion card - A circuit board that installs in an expansion slot on the system board in some computers, expanding the capabilities of the computer. Examples include video, modem, and sound cards. expansion slot - A connector on the system board (in some computers) where you insert an expansion card, connecting it to the system bus. ExpressCard - A removable I/O card adhering to the PCMCIA standard. Modems and network adapters are common types of ExpressCards. ExpressCards support both the PCI Express and USB 2.0 standard. Express Service Code - A numeric code located on a sticker on your Dell™ computer. Use the Express Service Code when contacting Dell for assistance. Express Service Glossary 159