Bit: The smallest amount of digital data,
either a 1 or 0.
Bluetooth is a technology designed for the implementation of a Personal
Area Network (PAN). Several devices in close
proximity can communicate with each other. The most common application
is a wireless headset for a cellular phone, though it is useful for
printing, synchronizing data, and anything else that involves wireless
data transmission. The range is up to about 30 feet (10 meters).
Byte: 8 bits, also called an octet. It is
the most basic amount of computer storage.
CDMA: Code Division
Multiple Access assigns a code to a transmission, allowing multiple
users to use the same channel simultaneously with different codes. The
national cellular carriers which use CDMA are Sprint and Verizon.
Cellular Tower: A
structure which transmits and receives information from cellular phones
and routes it through the landline phone system to the cellular tower
closest to the destination. Each tower is either analog or digital, and
uses the technology of the carrier which built the tower. (GSM,
CDMA, iDEN, etc.) To view a map
of towers in Washington,
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EV-DO: EVolution Data Only is a broadband
wireless technology being adopted by many CDMA
carriers. It is capable of transfer rates around 1 megabit per second.
GPRS: General Packet Radio Service, a
GSM technology that improves the transfer rate and
control of data transmission. It groups data into packets, which
increases the efficiency of available bandwidth.
GSM: Global System for
Mobile communication. It is a worldwide technology which phones use to
communicate with cellular towers, and is widely accepted around the
world. T-Mobile and Cingular are the only two national carriers in the
United States to use GSM technology.
iDEN: Integrated Digital Enhanced Network, a
technology created by Motorola, Inc. which incorporates two-way radio,
telephone, text messaging and data transmission into one network. It is
capable of placing more users into smaller bandwidth, utilizing spectrum
more efficiently. Nextel is the largest carrier in the United States
which uses iDEN technology.
1,024 bytes. Typically
Local Area Network is the connection between several computers in a
small geographic area. It can be either wired or wireless, but will
typically cover a home, small office building, or a small college
Megabit: 1,000,000 bits.
Personal Area Network refers to the connection and relationship between
devices which are in relatively close proximity to each other, typically
SIM Card: Subscriber Identity Module cards
carry a unique identification number which carriers use to identify
their subscribers on the network. Each mobile number is assigned to a
single SIM card, and is used in routing incoming calls to the phone. Not
every cellular technology utilizes SIM cards, though all have a similar
method for identification.
TDMA: Time Division
Multiple Access breaks spectrum into time slots which are assigned to
different users. It enables multiple users to use the same frequency at
the same time.
WAN: Wide Area Network is
a general term referring to a grouping of computers that is larger than
a LAN. The largest WAN in existence is The Internet,
but the term can also refer to much smaller networks as well. Something
as small as a large college campus could be considered a WAN.