Network Components & TermsChongseok Park 10DD

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Contents

• Hubs• Bridges• Switches• On-line• Off-line• Bibliography

HUBS

• A network hub is a device for connecting multiple Ether-net devices together and making them act as a single network division.

• It contains a multiple I/O ports, in which signal intro-duced at the input of any port appears at the output of ev-ery port except the original incoming.

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BRIDGES

• Bridging is a forwarding technique used in packet- switched computer networks. It is a different method than routing, bridging makes no assumption about where in a network a particular address is located.

• Bridging generally refers to transparent bridging or learn-ing bridge operation which predominates in Ethernet.

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SWITCHES

• It is also known as switching hub which is a computer networking device that connects network segment or network devices.

• The first Ethernet switch was introduced by Kalpana in 1990.

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ON-LINE

• On-line has a specific meaning in regard to computer technology and telecommunications. In general, “online” indicates a state of connectivity.

• Online often refers to the internet or the World Wide Web.

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OFF-LINE

• Off-line has a specific meaning in regard to computer technology and telecommunications. In general, “Of-fline” indicates a disconnected state.

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Bibliography

• http://www.webopedia.com/TERM/H/hub.html• http://en.wikipedia.org/wiki/Bridging_(networking)• http://en.wikipedia.org/wiki/Network_switch• http://en.wikipedia.org/wiki/Online_and_offline