Glossary 107
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
Term 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.