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A collection of two or more computers with communication between them through a medium is called a computer network. Through radio waves, wires, infrared, optical fibers etc. is where the communication medium can come from.
With the most important reason being that of communication, computer [url=http://www.ilyav.com/uggpascher.php]ugg pas cher[/url] network is an integral part of our daily lives. The use of computer networking is to share resources like fax machines, printers, modems, files etc., and its other uses are database server, computer server, email, chat, internet etc. The computer to which the resources are attached is called the server and the other computers that access the resource are called clients. In peer-to-peer computer [url=http://www.davidhabchy.com]barbour outlet[/url] networks there are no servers.
Wiring, network cards [url=http://www.ilyav.com/uggpascher.php]boots ugg pas cher[/url] and a hub, is what the networking hardware basically consists of. In order for one computer to understand what the other is talking, computer networks are required. A unique MAC address is what network cards have to identity computers on a [url=http://www.sandvikfw.net/shopuk.php]hollister sale[/url] computer network. All the computers in the network are connected by hubs. You can also use hubs to connect to other hubs to increase the size of the computer network. You can also connect two computers by using Ethernet cards or phone lines or power lines for communication, with hardware kits available at roughly a cost of $100.
Depending upon the size, the computer networks are classified as Local Area Networks (LAN), Wide Area Networks (WAN), Metropolitan Area Networks (MAN) and Personal Area Networks (PAN). The topology (topology is the way the computer networks and network resources are connected) of the networking can be classified as Bus Network, Ring Network and Star Network.
What computer networks have added is a new dimension to the 21st century. Unlike the [url=http://www.mxitcms.com/abercrombie/]abercrombie[/url] real [url=http://www.rtnagel.com/airjordan.php]nike air jordan pas cher[/url] world, the cyber world today is much faster and wider. Due to computer networks, all of this has been made [url=http://www.vivid-host.com/barbour.htm]barbour uk[/url] possible. Business, travel, communication, research, defense, society and almost all human endeavors have all been revolutionized by computer networks. The evolution of computer networks has helped the technological [url=http://www.thehygienerevolution.com/barbour.php]barbour[/url] revolution take a big leap forward.
As the number of computers in an office or a home increases, so do the number of cables, so wireless networking is a viable solution. Radio transreceivers or infrared signals are used to communicate between computers and devices in wireless networking. Also in wireless networking, some examples would include Wi-fi and Bluetooth technology, though [url=http://www.mquin.com/giuseppezanotti.php]giuseppe zanotti pas cher[/url] there may [url=http://www.vivid-host.com/barbour.htm]www.vivid-host.com/barbour.htm[/url] be security issues involved in wireless networking. [url=http://www.rtnagel.com/airjordan.php]jordan pas cher[/url] However there definitely is a stronger preference towards wireless networking nowadays among consumers.
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Due to the sharing of fax machines, printers, and modems amongst many computers and users, the operational cost is reduced. As it stores and runs many important data and jobs, a database on a computer network is considered to be very important. Emails and chats can be used for instantaneous communication and sending of files [url=http://www.hollisterhanesmorgan.co.uk]hollister uk[/url] on a computer network.
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