An energy conservation program launched by the US Environmental Protection Agency (EPA),
promotes the manufacture and marketing of energy-efficient office automation equipment.
Companies joining this program, must be willing to commit themselves to manufacture one or more
products capable of going into a low -power state (< 30 W) either after a period of inactivity, or after
a predetermined time selected by the user.
RETURN TO TOP OF THE PAGE
L
LCD Liquid Crystal Display
An alphanumeric display, using the unique properties of liquid crystal, to form characters. The latest
flat-panel displays, contains a matrix of hundreds or thousands of individual LCD cells that generate
text and colorful graphics on a screen. They consume little power, though they do require external
lighting to make them legible to the user.
RETURN TO TOP OF THE PAGE
U
USB or Universal Serial Bus
A smart plug for PC peripherals. USB automatically determines resources (like driver software and
bus bandwidth) required by peripherals. USB makes necessary resources available without user
intervention.
● USB eliminates "case anxiety" -- the fear of removing the computer case to install add-on
peripherals. USB also eliminates adjustment of complicated IRQ settings when installing
new peripherals.
● USB does away with "port gridlock." Without USB, PCs are normally limited to one printer,
two Com port devices (usually a mouse and modem), one Enhanced Parallel Port add-on
(scanner or video camera, for example) and a joystick. More and more peripherals for
file:///D|/My%20documents/dfu/150B5/english/150b5/glossary/glossary.htm (2 of 5)9/13/2004 3:37:07 PM
