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Level 143

Wireless, Mobile Computing, & Mobile Commerce

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A personal wireless network protocol. IT enables wireless communication between input devices and computers and among other devices within 10 meters
cellular telephones
Phones that provide two-way radio communications over a cellular network of base stations with seamless handoffs.
global positioning system (GPS)
A wireless system that uses satellites to enable users to determine their position anywhere on earth
A type of wireless transmission that uses red light not usually visible to human eyes.
location-based commerce (L-commerce)
Mobile commerce transactions targeted to individuals in specific locations, at specific times.
mesh network
A network composed of motes in the physical environment that "wake up" at intervals to transmit data to their nearest neighbor mote.
microwave transmission
A wireless system that uses microwaves for high-volume, long-distance, point-to-point communication.
mobile commerce (m-commerce)
Electronic commerce transactions that are conducted with a mobile device.
mobile computing
A real-time connection between a mobile device and other computing environments, such as the Internet or an intrane
mobile portal
A portal that aggregates and provides content and services for mobile users.
mobile wallet
A technology that allows users to make purchases with a single click from their mobile 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.
personal area network (PAN)
A computer network used for communication among computer devices close to one person
pervasive computing (ubiquitous computing)
A computer environment where virtually every object has processing power together with wireless or wired connections to a global network.
propagation delay
Any delay in communications due to signal transmission time through a physical medium.
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.
radio transmission
Uses radio-wave frequencies to send data directly between transmitters and receivers.
satellite radio (digital radio)
A wireless system that beams uninterrupted, near CD-quality music to your radio from satellites.
satellite transmission
A wireless transmission system that uses satellites for broadcast communications.
is the wireless transmission and receipt of data gathered from remote sensors.
ubiquitous computing
A computer environment where virtually every object has processing power together with wireless or wired connections to a global network.
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.
voice portal
A Web site with an audio interface.
Telecommunications in which electromagnetic waves carry the signal between communicating devices.
Wireless access point
a transmitter with an antenna
Wireless Fidelity (Wi-Fi)
A set of standards for wireless local area networks based on the IEEE 802.11 standard
wireless local area network (WLAN)
A computer network in a limited geographical area that uses wireless transmission for communication.
wireless sensor network (WSN)
Networks of interconnected, battery-powered, wireless sensors placed in the physical environment.