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Toshiba Tecra A4 (PTA40) User Manual

Page 194

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Glossary-8

User’s Manual

Glossary

H

hard disk: A non-removable disk usually referred to as drive C. Also called

fixed disk.

hard disk drive (HDD): An electromechanical device that reads and writes

a hard disk. See also hard disk.

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 dock/undock: Connecting or disconnecting a device to or from the

computer while the computer’s power is turned on.

hotkey: 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.

iLINK (IEEE1394): This port enables high-speed data transfer directly from

external devices such as digital video cameras.

infrared port: A cableless communications capable of using infrared

signals to send serial data.

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.

instruction: Statements or commands that specify how to perform a

particular task.

interface: 1) Hardware and/or software components of a system used

specifically to connect one system or device to another. 2) To

physically connect one system or device to another to exchange

information. 3) The point of contact between user, the computer, and

the program, for example, the keyboard or a menu.