108 Glossary
adapter—A device that provides a compatible connection between two
units. For example, the tablet’s internal display adapter receives
information from the software and translates it into images on the
screen. An adapter can take a number of forms, from a
microprocessor to a simple connector. An intelligent adapter (one
that is capable of doing some processing) may also be called a
controller.
Alternating Current (AC)—The type of power usually supplied to
residential and commercial wall outlets. AC reverses its direction at
regular intervals. Compare Direct Current (DC).
application—A set of instructions that can be executed by a tablet.
App shortcut —An application icon that can be placed on a Home
screen. Touching one opens the app without having to first
open the Apps screen. See also icon.
Bbackup—A copy of a file, usually on a removable disk, kept in case the
original file is lost or damaged.
baud rate—The speed at which a communication device, such as a
printer or modem, transmits information. Baud rate is the number of
signal changes per second (not necessarily the same as bits per
second). See also bits per second.
bits per second (bps)—A way of measuring the speed at which
information is passed between two devices. This is the basic unit of
measure used in modem communications, and is similar, but not
identical, to the baud rate. See also baud rate.
Bluetooth—A proprietary open wireless technology standard that uses
short wavelength radio transmissions to exchange data over short
distances. Bluetooth can transmit from fixed and mobile devices,
and provides a high level of security.
Bookmark—A Shortcut can be created and placed on a Home screen
from a selected browser bookmark. Touching the icon opens the
Web browser to the chosen bookmarked page. See also icon.
boot—To start the tablet. The term “boot” originates from bootstrap
program (as in “pulling itself up by its bootstraps”), a program that
loads and initializes the operating system. See also reboot.