Toshiba At7c Manual

							Glossary101
IEEEInstitute of Electrical and Electronics Engineers
I/O Input/Output
IRQ interrupt request
ISPInternet Service Provider
KB kilobyte
LCD Liquid Crystal Display
LED Light Emitting Diode
MB megabyte
RAM Random Access Memory
RFI Radio Frequency Interference
ROM Read-Only Memory
RTC Real-Time Clock
SD Secure Digital
TFT Thin Film Transistor
USB Universal Serial Bus
URLUniform Resource Locator
WANWide Area Network
www Wo r l d W i d e  We b
WLANWireless Local Area Network
Te r m s
The following terms may appear in this User’s Guide.
Aactive-matrix display—A liquid crystal display (LCD) made 
from an array of liquid crystal cells using active-matrix 
technology. Also known as a “TFT display,” in its simplest 
form there is one thin film transistor (TFT) for each cell. This 
type of display works well with tablet devices because of its 
shallow depth and high-quality color. Active-matrix displays 
are viewable from wider angles than most passive-matrix 
displays. 
						

							102Glossary
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. 
						

							Glossary103
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.
bus—An electrical circuit that connects the central processing 
unit (CPU) with other parts of the tablet, such as the video 
adapter, disk drives, and ports. It is the pathway through 
which data flows from one device to another. See also 
bus 
speed
, frontside bus.
bus speed—The speed at which the central processing unit 
(CPU) communicates with the other parts of the tablet.
Ccache—A section of very fast memory in which frequently used 
information is duplicated for quick access. Accessing data 
from cache is faster than accessing it from the tablet’s main 
memory. See also 
CPU cache.
Central Processing Unit (CPU)—The chip that functions as 
the “brain” of the tablet. It takes information from outside 
sources, such as memory or keyboard input, processes the 
information, and sends the results to another device that 
uses the information.
character—Any letter, number, or symbol you can use on the 
tablet. Some characters are non-printing characters, such as 
a paragraph break in a word-processing program. A 
character occupies one byte of tablet device storage.
chip—A small piece of silicon containing tablet device logic and 
circuits for processing, memory, input/output, and/or control 
functions. Chips are mounted on printed circuit boards.
compatibility—The extent to which tablets, programs, or 
devices can work together harmoniously, using the same 
commands, formats, or language as another.
configuration—(1) The collection of components that make up 
a single tablet operating system. (2) How parts of the system 
are set up (that is, configured).
controller—A device that controls the transfer of data from a 
tablet device to a peripheral device and vice versa. For 
example, disk drives, monitors, keyboards, and printers all 
require controllers. 
						

							104Glossary
CPU—See Central Processing Unit (CPU).
CPU cache—A section of very fast memory residing between 
the CPU and the tablet’s main memory that temporarily 
stores data and instructions the CPU will need to execute 
commands and programs. See also 
cache.
cursor—An onscreen symbol (usually a flashing vertical line) 
that indicates the position where characters will appear 
when you enter data.
Ddefault—The setting selected by a program when the user does 
not specify an alternative setting.
device—A component attached to the tablet. Devices may be 
external (outside the tablet’s case) or internal (inside the 
tablet’s case). Printers, disk drives, and modems are 
examples of devices.
device driver—A program (called a “driver”) that permits the 
tablet to communicate with a device.
Direct Current (DC)—The type of power usually supplied by 
batteries. DC flows in one direction. Compare 
Alternating 
Current (AC).
disable—To turn the option off. See also enable.
disk drive—The device that reads and writes information and 
programs on external media or hard disk. It rotates the disk 
at high speed past one or more read/write heads.
document—Any file created with an application and, if saved 
to disk, given a name by which it can be retrieved. See also 
file.
download—(1) In communications, to receive a file from 
another source through a network. (2) To send font data from 
the tablet to a printer. See also 
upload.
drag—To touch and hold an item for a moment and then, 
without lifting your finger, move the item until you reach the 
target position.
driver—See device driver. 
						

							Glossary105
Eemulation—A technique in which a device or program imitates 
another device or program.
enable—To turn on an option. See also disable.
executable file—A program that is ready to run. Application 
programs and batch files are examples of executable files. 
Names of executable files usually end with a .bat, .exe, or 
.apk extension.
expansion device—A device that connects to a tablet to 
expand its capabilities. Other names for an expansion device 
are port expander, port replicator, docking station, or 
network adapter.
extension—See file extension.
external device—See device.
Ffile—A collection of related information, saved on disk with a 
unique name. A file may be a program, information used by a 
program, or a document. See also 
document.
file name—A set of characters that uniquely identifies a file 
within a particular folder. It consists of two parts: the actual 
name and the file name extension. See also 
file extension.
file extension—The three characters following the period 
(pronounced “dot”) at the end of a file name. The extension 
indicates the type of file. Examples are .apk for application 
files and .pdf for documentation files. See also 
file name.
folder—A container for organizing files saved to a disk. A folder 
is symbolized on screen by a graphical image (icon) of a file 
folder. A folder can contain files and other folders.
Gground—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
.
Hhard 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 other external 
media and are used for long-term storage of programs and 
data. The primary (or only) hard disk in a tablet device is 
usually fixed. 
						

							106Glossary
hardware—The physical components of a tablet 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.
hot swapping—The ability to add or remove devices from the 
tablet while it is running and have the operating system 
automatically recognize the change.
Iicon—A small image displayed on the screen that represents a 
function, file, or program.
interlaced—A method of refreshing the display screen, in 
which only every other line of pixels is refreshed. Interlaced 
screens take two passes to create a complete screen image. 
Compare 
non-interlaced.
internal device—See device.
Internet—The decentralized, world-wide network of computers 
that provides electronic mail, the World Wide Web, and other 
services. See also 
World Wide Web.
LLED (Light Emitting Diode)—A solid state lamp (SSL) that 
uses light-emitting diodes (LEDs) as the source of light, 
which offers long life and high efficiency output. Multiple 
diodes are used together, since the light created by 
individual light-emitting diodes is small compared to 
incandescent and compact fluorescent lamps.
LCD (Liquid Crystal Display)—A type of display that uses a 
liquid substance between two transparent electrode panels. 
When an electric current passes through the electrodes, the 
molecules in the liquid form a crystalline pattern that 
polarizes the light passing through it. A filter over the 
electrodes permits only non-polarized light to pass to the 
surface of the display, creating light and dark pixels. 
						

							Glossary107
Mmemory—Typically refers to the tablet’s main memory, where 
programs are run and data is temporarily stored and 
processed. Memory can be volatile and hold data 
temporarily, such as RAM, or it can be nonvolatile and hold 
data permanently, such as ROM. A tablet’s main memory is 
RAM. See also 
RAM, ROM.
microprocessor—See Central Processing Unit (CPU).
motherboard—The computer’s main circuit board that 
contains the processor, memory, and other primary 
components.
mount—To initialize the external storage device for transferring 
and storing files.
multimedia—A combination of two or more media, such as 
sound, animation, and video in an application or 
presentation.
Nnetwork—A collection of computers and associated devices 
that are connected by communications facilities. A network 
allows you to share data and peripheral devices, such as 
printers, with other users and to exchange electronic mail.
non-interlaced—A method of refreshing the tablet screen, in 
which each pixel of every line is refreshed as the electron 
beam scans across and down the screen. Compare 
interlaced.
Oonline—Available through a computer. Online may refer to 
information being read from your own computer’s internal 
storage drive, such as online documentation or online Help, 
or to information coming from another company on a 
company network or the Internet.
operating system—A set of programs that controls how the 
tablet device works.
Ppassword—A unique string of characters entered by a user to 
verify his or her identity to a computer or the network.
peripheral—Any device, such as a mouse or keyboard, that is 
attached to the tablet and controlled by the tablet’s CPU.
pixel—Short for “picture element.” The smallest dot that can be 
produced on a screen or printer. 
						

							108Glossary
Plug and Play—Generally, refers to the tablet’s ability to 
automatically configure itself to work with peripheral devices. 
When capitalized, refers to a standard that, when followed 
by a device manufacturer, allows the tablet to configure itself 
automatically to work with the device.
port—A socket on the tablet where you plug in a cable for 
connection to a peripheral device.
processor—See Central Processing Unit (CPU).
properties—The attributes of an object or device. For example, 
the properties of a file include the file’s type, size, and 
creation date. 
RRAM (Random Access Memory)—Volatile memory that 
can be written to as well as read. 
Volatile here means that 
information in RAM is lost when you turn off your tablet. This 
type of memory is used for your tablet’s main memory. See 
also 
memory. Compare ROM.
Random Access Memory—See RAM.
Read-Only Memory—See ROM.
reboot—See boot, restart.
removable disk—A disk that can be removed from a disk 
drive. A Flash drive is one example of a removable disk.
resolution—A measure of the sharpness of the images that 
can be produced by a printer or displayed on a screen. For a 
printer, resolution is expressed in dots per inch (dpi). For a 
screen, it is expressed as the number of pixels available 
horizontally and vertically. 
restart—Synonymous with reboot. To reset the tablet by 
reloading the operating system without turning the tablet off. 
See also 
boot.
ROM (Read-Only Memory)—Non-volatile memory that can 
be read but not written to. 
Non-volatile here means that 
information in ROM remains whether or not the tablet is 
receiving power. This type of memory is used to store your 
tablet’s BIOS, which is essential instructions the tablet reads 
when you start it up.
 See also BIOS, memory. Compare 
RAM. 
						

							Glossary109
SSecure Digital (SD)—A small, portable, non-volatile memory 
card used to store and transfer data between digital 
products, providing encryption capability for content 
security.
select—To highlight or otherwise specify text, data, or graphics 
with the intent to perform some operation on it.
shortcut—See Application shortcut.
Sleep—A feature of some operating systems that allows you to 
turn off the tablet without exiting your open applications and 
to continue from where you left off when you turn the tablet 
on again.
software—See application. Compare hardware.
Swipe—To move your finger quickly across the surface of the 
screen without pausing.
Sync—To synchronize files and data or accounts so that the 
same information is shared in multiple places.
TTFT display—Thin Film Transistor display. See active-matrix 
display
. 
To u c h—To activate items displayed on the screen, such as 
apps, setting icons, and onscreen buttons by touching 
them with your finger.
Tr a n s f e r—To move files or data from one location to another.
Uunmount—To prepare the external storage media for removal 
from the device.
upload—To send a file to another computer through a modem 
or network. See also 
download.
utility—A computer program designed to perform a narrowly 
focused operation or solve a specific problem. Utilities are 
often related to computer system management.
WWallpaper—is a background image downloaded from the Web 
or chosen from the Gallery (pictures taken with the camera, 
or still images included with the system). A live wallpaper is 
an animated scene or maybe a map that centers on the 
current location.
Web—See World Wide Web. 
						

							110Glossary
Widget—A miniature app that can be placed on a Home 
screen. Touching the icon opens the application. Many of 
these include a clock, a music player, and the Google™ 
Search bar. See also 
icon.
Wi-Fi®—A registered trademark term of the Wi-Fi Alliance that 
stands for Wireless Fidelity, and is another term for the 
communication protocol to permit an Ethernet connection 
using wireless communication components. 
World Wide Web (www)—The worldwide network of Web 
sites linked together over the Internet. A user of the Web can 
jump from site to site regardless of the location of the tablet 
hosting the site. See also 
Internet.