Computer Networking Fundamentals
Computer network - a collection of two or more computers with communication between them in Wednesday. The communication environment can be through radio-waves, wires, infra-red, an optical fiber etc.
The Computer network - an integral part of our daily lives with the most important reason being that from communication. Use of the computer organization of a network should divide resources as faxes, printers, modems, files etc., and its other use - the database server, the computer server, e-mail, conversation, the Internet etc. The computer to which resources are attached, call server and other computers which get access to a resource, are called clients. In computer networks of connection of the LAN equal in rights hubs there are no servers.
Division of faxes, printers and modems among many computers and users reduces operational cost. The database on a computer network - very important application as it stores and operates many important data and workplaces. Electronic letters and conversations can be used for instant communication and a parcel of files in a computer network.
Computer networks are classified, depending on the size, as Local networks (LAN), Global networks (WAN), City computer networks (MAN) and Personal Area Networks (PAN). The topology (the topology - a way computer networks and network resources, it is connected) the network organizations, can be classified as the Bus Network, the Ring Network and the Star Network.
Network hardware generally consist of conducting, network payments and the center. Computer network payments are required so that one computer could understand that "tells" other computer. Network payments have unique Poppy the address to identify computers in a computer network. The centers connect all computers in a network. The centers can be used also to incorporate to other centers, to increase the size of a computer network. Two computers can be connected, using the Ethernet cards either telephone lines or power lines for communication with the sets of hardware available at about a cost of $100.
While number of computers at office or house increases, also - number of cables, thus, a wireless network - the viable decision. In transreceivers of radio of a wireless network or infra-red signals are used to communicate between computers and devices. Examples of a wireless network include Wi-Fi and the Bluetooth technology though there can be the safety issues involved in a wireless network. However, definitely there is stronger preference to a wireless network now among consumers.
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