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User’s Manual Glossary-8
Glossary
G
gigabyte (GB): A unit of data storage equal to 1024 megabytes. See also
megabyte.
graphics: Drawings, pictures, or other images, such as charts or graphs,
to present information.
H
hard disk: A non-removable disk usually referred to as drive C. The
factory installs this disk and only a trained engineer can remove it
for servicing. Also called fixed disk.
hard disk drive (HDD): An electromechanical device that reads and writes
a hard disk. See also hard disk.
HD DVD-R: A High Definition Digital Versatile Disc Recordable is a high-
capacity, high performance disc that lets you store large volumes of
data. The HD DVD-R drive uses a laser to read data from the disc.
HD DVD-ROM: A High Definition Digital Versatile Disc Read Only Memory
is a high capacity, high performance disc suitable for play back of
video and other high-density files. The HD DVD-ROM drive uses a
laser to read data from the disc.
hardware: The physical electronic and mechanical components of a
computer system: typically, the computer itself, external disk drives,
etc. See also software and firmware.
hertz: A unit of wave frequency that equals one cycle per second.
hexadecimal: The base 16 numbering system composed of the digits 0
through 9 and the letters A, B, C, D, E, and F.
host computer: The computer that controls, regulates, and transmits
information to a device or another computer.
hot key: The computer’s feature in which certain keys in combination with
the extended function key, FN, can be used to set system
parameters, such as speaker volume.
HW Setup: A TOSHIBA utility that lets you set the parameters for various
hardware components.
I
icon: A small graphic image displayed on the screen or in the indicator
panel. In Windows, an icon represents an object that the user can
manipulate.
i.LINK (IEEE1394): This port enables high-speed data transfer directly
from external devices such as digital video cameras.
input: The data or instructions you provide to a computer, communication
device or other peripheral device from the keyboard or external or
internal storage devices. The data sent (or output) by the sending
computer is input for the receiving computer.