MIS chapter 8
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