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Glossary
G
ground—A conductor to which all components of an
electric circuit are connected. It has a potential of zero
(0) volts, is connected to the earth, and is the point of
reference for voltages in the circuit.
H
hard disk—A storage device composed of a rigid platter or
platters that can be magnetically coded with data. Hard
disks hold much more information than some external
media and are used for long-term storage of applications
and data. The primary (or only) hard disk in a computer is
usually fixed, but some computers have secondary hard
disks that are removable.
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
.
Hibernation—A feature of many Toshiba computers that
saves to the internal storage drive the current state of
your work, including all open files and applications,
when you turn the computer off. When you turn on the
computer again, your work is returned to the same state
it was when the computer was turned off. See also
Sleep, Suspend
.
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 application.
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
.