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Glossary
IEEE Institute of Electrical and Electronics Engineers
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.