Toshiba T2150CD Benutzerhandbuch
Seite 173
perform certain functions.
G
GND:
Ground. An RS-232-C signal used in the exchange of data between a
computer and serial device.
graphics:
The use of drawings, pictures, or other images, such as charts or
graphs, to present information.
H
half duplex:
See
duplex.
handshake:
The series of signals between a computer and another peripheral
device (for example, a modem and a computer) that sets the parameters required
for exchanging data.
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 electro-mechanical 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.
hexadecimal:
The base 16 numbering system composed of the digits 0 through 9
and the letters A, B, C, D, E, and F.
high memory area (HMA):
The first 64KB of extended memory.
host computer:
The computer that controls, regulates, and transmits information
to a device or another computer.
hot key:
The T2400 Series feature in which certain keys in combination with the
extended function key,
Fn, can be used to set system parameters, such as speaker
volume.
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.
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.