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What is Ethernet

Encyclopedia of Information Science and Technology, Second Edition
A communications standard (IEEE 802.3) for Local Area Networks (LAN). When a device wishes to transmit, it waits until the link is empty and then transmits. In the event that two or more devices transmit simultaneously (collision), all devices stop transmitting and wait a random time period before attempting to retransmit.
Published in Chapter:
A University/Community Partnership to Bridge the Digital Divide
David David Ruppel (The University of Toledo, USA) and Cynthia Ruppel (The University of Alabama in Huntsville, USA)
Copyright: © 2009 |Pages: 10
DOI: 10.4018/978-1-60566-026-4.ch618
Abstract
A policy concern in the information age is the “digital divide,” a gap between those who have easy access to technology and those who do not. References are made to information “haves” and “have-nots” in an age where information is equivalent to wealth (Holloway, 2000). The “have-nots” are in danger of exclusion from the new economy and marginalization into low-wage jobs (Dunham, 1999). In 2000, the President of the United States asked the IT community to help close this digital divide for moral reasons and to ensure that the economy flourishes with the availability of skilled workers (Shewmake, 2000). This overview summarizes a five-phase service-learning project accomplished through a partnership between the University of Toledo and a local K-8 parochial/non-profit school. The students were primarily enrolled in a Systems Analysis, Design and Implementation course (SAD). This longitudinal project was undertaken to plan, design, and wire a network for the school and to assess and implement continuing and future computer needs. It allowed students to gain “real-life” experience while contributing to the growth of IT among children in a non-profit setting.
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Local Area Networks
A family of LAN specifications that has become the de facto standard for local area networks.
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Modern Passive Optical Network (PON) Technologies
A large, diverse family of frame-based computer networking technologies that operates at many speeds (typically at 10, 100, or 1000 Mb/s) for local area networks (LANs). The name comes from the physical concept of the ether. It defines a number of wiring and signaling standards for the physical layers, through means of network access at the media access control (MAC)/data link layer, and a common addressing format. (Ethernet has been standardized as IEEE802.3.)
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Evolution of DSL Technologies Over Copper Cabling
It refers to the most widely installed local area network (LAN) technology (specified in the IEEE 802.3 standard). An Ethernet LAN typically uses coaxial cable or special grades of twisted pair wires. The most commonly installed Ethernet systems are called 10BASE-T and provide transmission speeds up to 10 Mbps.
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Wireless Computer Labs
The standard individual connection for many offices, classrooms, labs, and residence hall rooms as well as corporate office and training environments and complexes. Ethernet operates at speeds up to 10 megabits per second, is available 24 hours a day, and does not require a phone line. Fast Ethernet connections that operate at 100 megabits per second are available but usually reserved for server applications.
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