Glossary 277EECC — error checking and correction — A type of memory that includes specialcircuitry for testing the accuracy of data as it passes in and out of memory.ECP — extended capabilities port — A parallel connector design that providesimproved bidirectional data transmission. Similar to EPP, ECP uses direct memoryaccess to transfer data and often improves performance.EIDE — enhanced integrated device electronics — An improved version of the IDEinterface for hard drives and CD drives.EMI — electromagnetic interference — Electrical interference caused byelectromagnetic radiation.ENERGY STAR® — Environmental Protection Agency requirements that decreasethe overall consumption of electricity.EPP — enhanced parallel port — A parallel connector design that providesbidirectional data transmission.ESD — electrostatic discharge — A rapid discharge of static electricity. ESD candamage integrated circuits found in computer and communications equipment.expansion card — A circuit board that installs in an expansion slot on the systemboard in some computers, expanding the capabilities of the computer. Examplesinclude video, modem, and sound cards.expansion slot — A connector on the system board (in some computers) where youinsert an expansion card, connecting it to the system bus.ExpressCard — A removable I/O card adhering to the PCMCIA standard. Modemsand network adapters are common types of ExpressCards. ExpressCards support boththe 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. ExpressService Code service may not be available in some countries.extended display mode — A display setting that allows you to use a second monitor asan extension of your display. Also referred to as dual display mode.extended PC Card — A PC Card that extends beyond the edge of the PC Card slotwhen installed.