178
Glossary
hardware
—The physical components of a computer system.
Compare
software
.
HDMI (High-Definition Multimedia Interface)
—An
interface used to transmit high quality audio and video signal
via a single cable in digital format, providing better picture
quality than analog signal.
HDMI-CEC (HDMI Consumer Electronics Control)
—
One A/V component can control another while using this
function, if connected with HDMI cables. See also
HDMI
.
hot swapping
—The ability to add or remove devices from a
computer while the computer is running and have the
operating system automatically recognize the change.
I
icon
—A small image displayed on the screen that represents a
function, file, or program.
interlaced
—A method of refreshing a computer screen, in
which only every other line of pixels is refreshed. Interlaced
monitors take two passes to create a complete screen
image. Compare
non-interlaced
.
internal device
—See
device
.
Internet
—The decentralized, world-wide network of computers
that provides electronic mail, the World Wide Web, and other
services. See also
World Wide Web
.
K
keyboard shortcut
—A key or combination of keys that you
use to perform a task instead of using a pointing device such
as a mouse.
L
L1 (level one) cache
—Memory cache built into the processor
to help improve processing speed. See also
cache, CPU
cache, L2 cache
.
L2 (level two) cache
—Memory cache installed on the
motherboard to help improve processing speed. It is slower
than L1 cache and faster than main memory. See also
cache, CPU cache, L1 cache
.
LAN (Local Area Network)
—A group of computers or other
devices dispersed over a relatively limited area and
connected by a communications link that enables any
device to interact with any other on the network.
