MIS chapter 8

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pervasive computing (ubiquitous computing)

a computer environment where virtually every object has processing power together with wireless or wired connections to a global network

wireless local area network (WLAN)

a computer network in a limited geographical area that uses wireless transmission for communication

personal area network (PAN)

a computer network used for communication among computer devices close to one person

ultra-wideband (UWB)

a high-bandwidth wireless technology with transmission speeds in excess of 100 Mbps that can be used for applications such as streaming multimedia from, say, a personal computer to a television

mesh network

a network composed of motes in the physical environment that "wake up" at intervals to transmit data to their nearest neighbor mote

mobile portal

a portal that aggregates and provides content and services for mobile users

mobile computing

a real-time connection between a mobile device and other computing environments, such as the Internet or an intranet

wireless fidelity (WiFi)

a set of standards for wireless local area networks based on the IEEE 802.11 standard

hotspot

a small geographical perimeter within which a wireless access point provides service to a number of users

mobile wallet

a technology that allows users to make purchases with a single click from their mobile devices

infrared

a type fo wireless transmission that uses red light not usually visible to human eyes

voice portal

a web site with an audio interface

satellite radio (digital radio)

a wireless system that beams uninterrupted, near CD-quality music to your radio from satellites

microwave transmission

a wireless system that uses microwaves for high-volume, long-distance, point-to-point communication

global positioning system (GPS)

a wireless system that uses satellites to enable users to determine their position anywhere on earth

radio-frequency identification (RFID) technology

a wireless technology that allows manufacturers to attach tags with antennas and computer chips to goods and then track their movement through radio signals

satellite transmission

a wireless transmission system that uses satellites for broadcast communications

wireless access point

an antenna connecting a mobile device to a wired local area network

propagation delay

any delay in communications due to signal transmission time through a physical medium

bluetooth

chip technology that enables short-range connection data (data and voice) between wireless devices

mobile commerce (m-commerce)

electronic commerce transactions that are conducted with a mobile device

location-based commerce (l-commerce)

mobile transactions targeted to individuals in specific locations, at specific times

wireless sensor networks (WSN)

networks of interconnected, battery-powered, wireless sensors placed in the physical environment

cellular telephones (cell phone)

phones that provide two-way radio communications over a cellular network of base stations with seamless handoffs

wireless

telecommunications in which electromagnetic waves carry the signal btwn communicating devices

near-field communications (NFC)

the smallest of the short range wireless networks, designed to be embedded in mobile devices such as cell phones and credit cards

telemetry

the wireless transmission and receipt of data gathered from remote sensors

radio transmission

use radio-wave frequencies to send data directly between transmitters and receivers


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