Glossary
109
I/O
Input/Output
IRQ
interrupt
request
ISP
Internet 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
URL
Uniform Resource Locator
WAN
Wide Area Network
www
World Wide Web
WLAN
Wireless Local Area Network
Terms
The following terms may appear in this User’s Guide.
A
active-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.
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.