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Lecture 12

ITM 100 Lecture Notes - Lecture 12: Wide Area Network, Radio-Frequency Identification, Wimax

Information Technology Management
Course Code
ITM 100
Raymond Moss

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ITM100 Chapter 12
Telecommunication system - Enables data transmission over public or private networks.
Network - A system created by linking 2+ computers and establishing protocols, so that they can work together.
The three types of networks include:
Local area network (LAN)
Metropolitan area network (MAN)
Wide area network (WAN)
Voice over IP (VoIP) - Uses TCP/IP technology to transmit voice calls over long-distance telephone lines.
Networking Businesses:
Virtual private network (VPN) - A way to use public telecommunication infrastructure (e.g., Internet) to
provide secure access to an organization’s network
Valued-added network (VAN) - A private network, for exchanging info through a secure connection.
Personal digital assistants (PDA) - Are small, handheld computers capable of entirely digital communications
Location based services (LBS) - Wireless mobile content services that provide location-specific data to cusers
moving from location to location.
Global position systems (GPS) - A constellation of 24 well-spaced satellites that orbit the Earth and make it
possible for people to pinpoint their geographical location.
Geographic information system (GIS) - Consists of hardware, software, and data that provide location information
for display on a multidimensional map.
Wireless LAN (WLAN) - A local area network that uses radio signals to transmit and receive data over distances
of a few hundred feet
Wireless fidelity (Wi-Fi) - Portable devices can connect wirelessly to a local area network
Wireless MAN (WMAN) - A metropolitan area network that uses radio signals to transmit and receive data
Worldwide Interoperability for Microwave Access (WiMAX) - A comm. technology aimed at providing high-
speed wireless data over metropolitan area networks
Radio frequency identification (RFID) - Uses chips or smart labels that store unique identifiers and relay this
information to electronic readers
RFID tag - Contains a microchip and an antenna. Works 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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