IEEE 802.11
A set of standards carrying out wireless local area network (WLAN) computer
communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and
maintained by the IEEE LAN/MAN Standards Committee.
Light Emitting Diode (LED)
A low power electronic light source commonly used as an indicator light. It uses less
power than an incandescent light bulb but more than a Liquid Crystal Display (LCD).
Liquid Crystal Display (LCD)
A display that uses liquid crystal sealed between two glass plates. The crystals are
excited by precise electrical charges, causing them to reflect light outside according
to their bias. They use little electricity and react relatively quickly. They require
external light to reflect their information to the user.
Null modem cable
RS-232 serial cable where the transmit and receive lines are crosslinked. In some
cables there are also handshake lines crosslinked. In many situations a straight
through serial cable is used, together with a null modem adapter. The adapter
contains the necessary crosslinks between the signals.
One shot key
Pressing a one shot key actives the state. The state remains active until any other
key is pressed. If you hold down a one shot state key and you press another key the
state will remain active until you release the one-shot key.
Pairing
A Bluetooth® pairing occurs when two Bluetooth® devices agree to communicate
with each other and establish a connection.
Piconet
A piconet is a Bluetooth® PAN that links up to eight devices. Each piconet is
controlled by one master device, and up to seven slave devices at any one time. Any
device may be a member of more than one piconet, changing its membership as a
user moves from one area to another.
RAM
Random Access Memory. Data in RAM can be accessed in random order, and
quickly written and read.
RF
Radio Frequency.
RTC
Real Time Clock.
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General
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