Glossary 21
Glossary
Terms in this Glossary are provided for informational purposes only and may
or may not describe features included with your particular computer.
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
DisplayPort — An interface standard of the Video Electronics Standards Association
(VESA) used for digital displays.
docking device — provides port replication, cable management, and security features
to adapt your laptop to a desktop workspace.
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.
DVI — digital video interface — A standard for digital transmission between a
computer and a digital video display.
E
eSATA — External Serial Advanced Technology Attachment — An interface for
external Serial ATA devices.
H
HDMI — High-Definition Multimedia Interface — An interface of 19 separate,
uncompressed audio and video signals used for high definition TV and audio.
I
I/O — input/output — An operation or device that enters and extracts data from your
computer. Keyboards and printers are I/O devices.
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