CTER
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Definitions for teachers by teachers

Ethernet

Ethernet- Ethernet is the most widely installed local area network technology. Now specified in a standard, IEEE 802.3, Ethernet was originally developed by Xerox and then developed further by Xerox, DEC, and Intel. 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. Devices are connected to the cable and compete for access using a Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol.
Fast Ethernet or 100BASE-T provides transmission speeds up to 100 megabits per second and is typically used for LAN backbone systems, supporting workstations with 10BASE-T cards. Gigabit Ethernet provides an even higher level of backbone support at 1000 megabits per second (1 gigabit or 1 billion bits per second).
How it affects me: Park View is wired with category 5 Ethernet connections.
Selected Link: Charles Spurgeon's Ethernet Web Site

by Sue Cooper


Ethernet

Ethernet card

Ethernet is a standard for connecting computers into a local area network (LAN). The most common form of Ethernet is called 10BaseT, which denotes a peak transmission speed of 10 mbps using copper twisted-pair cable.

Ethernet is the most popular type of local area network, which sends its communications through radio frequency signals carried by a coaxial cable. Each computer checks to see  if another computer is transmitting and waits its turn to transmit. If two computers accidentally transmit at the same time and their messages collide, they wait and send again in turn. Software protocols used by Ethernet systems vary, but include Novell Netware and TCP/IP.

Sources:
http://www.computeruser.com/resources/dictionary/
http://coverage.cnet.com/Resources/Info/Glossary/Terms/ethernet.html

by Constanza Bacca & Pedro Willging


ETHERNET - is the most widely used local area network (LAN) technology.  It is the wire network that connects the computers in a local area network.  The original and most popular version of Ethernet supports a data transmission rate of 10 Mb/s.  Newer versions of Ethernet called "Fast Ethernet" and "Gigabit Ethernet" support data rates of 100 Mb/s and 1 Gb/s (1000 Mb/s).  An Ethernet LAN may use coaxial cable, special grades of twisted pair wiring, or fiber optic cable.  The St. Joseph School District is a complete ethernet network running 10mb/s capable of 100Mb/s when a need arises.
Drawing ofthe First Ethernet SystemA drawing of the first Ethernet system by Bob Metcalfe.

Resource:  Techfest

by Mike Sennert


Ethernet

Ethernet is what connects all computers in the building to the Rolling Meadows High School and District 214 networks. A hub on the second floor houses our network (and your and your students' files) and all the networked computers and printers throughout the building are wired into this hub. All information from all computers must be processed in the hub and this is what causes the many computer slow downs and temporary freezes which occur throughout the building. The Math/Science Computer Lab is located closest to the hub and this is why you find that these computers are often the fastest and most hassle-free. The English computer lab and Library are farthest from the hub and this is why these computers are often the most sluggish in the building.

Links: University of Texas Ethernet Site, 3Com Ethernet Site

by Pat Thornburn


Ethernet- Ethernet is a common way to network computers in a LAN, or Local Area Network. It is a network that is usually located in the same building or floor of a building. For example, my school, housed in one building, uses and Ethernet connection. Ethernet handles about 10 Mbps (10,000,000 bits per second) and is very versatile in the different computers that can handle it. Ethernet was originally developed by the Xerox Corporation. Ethernet uses either the star topology or the bus topology (for network setup). The star topology is the shape of a LAN and contains a central hub with all the computers linked to the central hub. A bus topology has a central cable (the bus or backbone of the network) with all the computers linked to this cable, which is then linked to the hub. The bus topology is a relatively easy and inexpensive way to install a small network.

by Kristin Zage


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Last updated: 31 July 2000