Glossary - Dell E-Legacy PR04X User Manual

Glossary

A
AC — alternating current — The form of electricity that powers your computer when
you plug the AC adapter power cable in to an electrical outlet.
D
docking station — provides port replication, cable management, and security features
to adapt your notebook to a desktop workspace.
E
E-Legacy Extender — A device that provides serial, parallel, PS/2 and USB support by
connecting to a laptop computer docking connector.
I
I/O — input/output — An operation or device that enters and extracts data from your
computer. Keyboards and printers are I/O devices.
P
parallel connector — An I/O port often used to connect a parallel printer to your
computer. Also referred to as an LPT port.
PS/2 — personal system/2 — A type of connector for attaching a PS/2-compatible
keyboard, mouse, or keypad.
S
serial connector — An I/O port often used to connect devices such as a handheld
digital device or digital camera to your computer.
U
USB — universal serial bus — A hardware interface for a low-speed device such as a
USB-compatible keyboard, mouse, joystick, scanner, set of speakers, printer,
broadband devices (DSL and cable modems), imaging devices, or storage devices.
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Glossary