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| enable the transmission of data over public or private networks |
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| a communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards, or protocols, so that they can work together |
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| is designed to connect a group of computers in close proximity to each other such as in an office building, a school, or a home. |
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| spans a large geographic area, such as a state, province, or country |
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| Metropolitan area network (MAN) |
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| a large computer network usually spanning a city |
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| Network and telecommunication competitive advantages include: |
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Definition
Voice over IP
Networking businesses
Increasing the speed of business
Securing business networks |
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| uses TCP/IP technology to transmit voice calls over long-distance telephone lines |
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| Virtual private network (VPN) |
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| a way to use the public telecommunication infrastructure (e.g., Internet) to provide secure access to an organization’s network |
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| Valued-added network (VAN) |
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Definition
| a private network, provided by a third party, for exchanging information through a high capacity connection |
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| is the difference between the highest and the lowest frequencies that can be transmitted on a single medium, and it is a measure of the medium's capacity |
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| refers to high-speed Internet connections transmitting data at speeds greater than 200 kilobytes per second (Kbps) |
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| combines the functions of a cellular phone and a PDA in a single device |
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| a telecommunications industry specification that describes how mobile phones, computers, and personal digital assistants (PDAs) can be easily interconnected using a short-range wireless connection |
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| a big microwave repeater in the sky; it contains one or more transponders that listen to a particular portion of the electromagnetic spectrum, amplifying incoming signals, and retransmitting them back to Earth |
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| commonly used to transmit network signals over great distances |
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| Location-based services (LBS) |
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Definition
| are wireless mobile content services which provide location-specific information to mobile users moving from location to location |
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| Global Positioning System (GPS) |
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| is a "constellation" of 24 well-spaced satellites that orbit the Earth and make it possible for people with ground receivers to pinpoint their geographic location |
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| Geographic information system (GIS) |
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| is designed to work with information that can be shown on a map |
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| Wireless fidelity (wi-fi) |
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Definition
| a means of linking computers using infrared or radio signals |
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Definition
| is a telecommunications technology aimed at providing wireless data over long distances in a variety of ways, from point-to-point links to full mobile cellular type access |
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| A single WiMAX tower can provide coverage to a very large area - as big as 3,000 square miles |
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Definition
| The receiver and antenna could be built into a laptop the way Wi-Fi access is today |
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| Radio frequency identification (RFID) |
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Definition
| use active or passive tags in the form of chips or smart labels that can store unique identifiers and relay this information to electronic readers |
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Definition
| contains a microchip and an antenna, and typically work by transmitting a serial number via radio waves to an electronic reader, which confirms the identity of a person or object bearing the tag |
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