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ODW 6.4

Our Digital World 6.4

TermDefinition
standards Allow different devices to talk to one another. Standards ensure compatibility among devices, specifying how computers access transmission media, the speeds used on networks, the design of networking hardware such as cables, and so on.
American National Standards Institute (ANSI) One of the organizations that establishes network communications standards.
Institute of Electrical and Electronics Engineers (IEEE) One of the organizations that establishes network communications standards.
protocol A standard that specifies how two devices will communicate by providing rules such as how data should be formatted and coded for transmission. The Internet transmission protocol is indicated in the first part of a website’s URL.
Ethernet A standard that specifies that there is no central device controlling the timing of data transmission. With this standard, each device tries to send data when it senses that the network is available.
TCP/IP Short for Transmission Control Protocol/Internet Protocol. The Internet’s protocol, which breaks transmissions into small packets of data that are sent on the network. Each packet specifies the order in which the data is to be reassembled.
packet A small unit of data that is passed along a packet-switched network, such as the Internet.
packet switching The process of breaking data into packets, sending, and then reassembling the original data.
Wi-Fi A wireless technology, based on the 802.11 standard in its various versions such as 802.11 a, g, or n, that is used to connect to the Internet via hotspots and radio waves.
802.11 standard A communications standard used in Wi-Fi networks that tells wireless devices how to connect with each other using a series of access points and radio frequencies to transmit data.
hotspot A location where Wi-Fi access is available.
WiMAX (Worldwide Interoperability for Microwave Access) Also known as 802.16, this standard uses radio waves to connect with other devices using a WiMAX tower; it is faster and can work over a longer range than Wi-Fi.
Long Term Evolution (LTE) A set of 4G wireless standards that involves changes to the wireless infrastructure to increase speed and bandwidth by installing transmitters that operate on different frequency bands to avoid interference.
Bluetooth A network protocol that offers short-range connectivity (3 to 300 feet, depending on a device’s power class) via radio waves between devices such as cell phones and cars. Bluetooth-enabled devices can communicate directly with each other.
Bluetooth LE (BLE) Bluetooth low energy (also referred to as Bluetooth Smart) is a new Bluetooth standard that uses much less power to communicate within the same range as what is now called “Classic” Bluetooth.
Bluetooth Smart Devices that use the Bluetooth low energy standard (also referred to as Bluetooth LE) are marketed under the name Bluetooth Smart. These devices use much less power to communicate within the same range as what is now called “Classic” Bluetooth.
tethering The ability to share the Internet connection of a mobile device with another device via a cable, Bluetooth, or Wi-Fi.
Radio Frequency Identification (RFID) A wireless technology primarily used to track and identify items using radio signals. An RFID tag placed in an item contains a transponder which is read by a transceiver or RFID reader.
Wireless Application Protocol (WAP) Specifies how mobile devices such as cell phones display online information, such as maps and email.
email server A computer dedicated to managing the sending, receiving, and storing of email messages.
webmail A web-based email service, such as Hotmail or Gmail, that can be accessed from any computer connected to the Internet using a web browser.
WiGig WiGig is based on the 802.11 ad standard and promises speeds of up to 7 Gbps. Operating in the 60 GHz range, it has range limitations.
Created by: softcrylic