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BUS 340
Ch. 7.2
21
Computer Science
Undergraduate 4
12/07/2011

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Cards

Term
mobile vs. wireless
Definition
technology can travel w/ the user vs. any type of operation accomplished w/o the use of a hard wired connection
Term
personal area networks (PAN)
Definition
provide communication over a short distance that is intended for use w/ devices that are owned and operated by a single user. ex: computer and wireless mouse
Term
bluetooth
Definition
wireless PAN tech that transmits signals over short distances b/w cells, computers, and other devices
Term
wireless LAN (WLAN)
Definition
a local are network that uses radio signals to transmit and receive data over distances of a few hundred feet. One of the most important access network tech in the internet today
Term
wireless fidelity (Wi-Fi)
Definition
a means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio
Term
hotspots
Definition
areas around access points where users can connect to the internet
Term
wireless MAN (WMAN)
Definition
a metropolitan area network that uses radio signals to transmit and receive data. not widely available
Term
worldwide interoperablity for microwave access (WiMAX)
Definition
A communication tech aimed at providing high-speed wireless data over metropolitan area network. Like Wi-Fi but covers greater distances and has high bandwiths
Term
line-of-sight vs non-line-of-sight
Definition
offers a fixed antenna that points at the Wi MAX tower from a rooftop or pole vs. uses a small antenna on a mobile device that connects to a WiMAX tower less than 6 miles away where transmissions are disrupted by physical obstructions
Term
wireless WAN (WWAN)
Definition
A wide area network that uses radio signals to transmit and receive data. divided into cellular communication systems and satellite communication systems
Term
smart phones
Definition
offer more advanced computing ability and connectivity than basic cell phones. ex: iPhone
Term
steaming
Definition
a method of sending audio and video files over the internet in such a way that the user can view the file while it is being transferred.
Term
satellite
Definition
a space station that orbits the Earth receiving and transmitting signals from Earth-based stations over a wide area. appx 22K miles above Earth
Term
areas experiencing tremendous growth using wireless tech include:
Definition
Radio-frequency identification (RFID), global positioning systems and geographic information systems
Term
RFID
Definition
uses electronic tags and labels to identify objects wirelessly over short distances. Helps w/ inventory, lost pets, antitheft etc.
Term
global positioning systems (GPS)
Definition
A satellite-based system providing extremely accurate position, time and speed information.
Term
geographic information systems (GIS)
Definition
consists of hardware, software and data that provide location info for display on a multidimensional map. GPS is the foundation for this. ex: it can find what is nearby, routing info, etc.
Term
benefits of business mobility
Definition
enhances mobility, provided immediate data access, increases location and monitoring capabilities, improves work flow, provided mobile bus opportunities, provides alternative to wiring
Term
challenges of business mobility
Definition
protecting against theft and wireless connections, preventing viruses and addressing privacy concerns w/ RFID and LBS
Term
Location-based services (LBS)
Definition
applications that use location infor to provide a service
Term
Wi-Fi Protected Acces (WPA)
Definition
A wireless security protocol to protect Wi-Fi networks
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