Computer networks - elements and components

In the investigation of computer networks, it should be noted that the most important elements in the network computer is compromised. The main elements are presented below must be:

1. Message: The message is a general term that describes the data to be transmitted. You can e-mail, website, search, instant messaging or other forms. The message must be generated by the end user to make the transfer. This message will be fed into the gridlater.

Generally, the message is created with the software installed on your computer. For example, if the e-mail message will be generated by e-mail programs like Outlook. Even if the message requests a Web page will be generated from a browser like Internet Explorer. It can also be generated from a chat program they want is a call from the user.

2. Medium: The medium is the transmission path through which data is transmitted. It is used to connect theThe end user device to the network or to connect network devices together.

Many species exist for the medium. Mainly, it can be wired or wireless media. The medium can be wired with copper or optical fiber. Copper is divided into coaxial cables and twisted pair. The copper wires carry data as pulses, while the optical fibers carry data as pulses of light. The means of transmission of wireless data is like electromagnetic waves. Each of the above means has its own specificused depending on the application.

3. Equipment: There are two basic types of networked devices: terminals and network equipment. The terminal is used as the source of the message. It may be a client computer or mobile IP. The function of the terminal is sending data to the network.

On the other hand, network devices and the means to data from the user end device can be used in the front. You are inbetween terminals and interconnected via the cable.

The main function of the devices of a computer network is to transmit data to the data to the correct destination, based on the address to send along. The two most important devices to achieve this, routers and switches. The router forwards the data to the IP address while on the route to pass data to the MAC address within the frame of data.

4. Rules: The rules are theProtocols used between the devices, organize the communication. The two most popular protocols are IP and TCP. If the end user must send the data runs, it speaks for the first device, after a series of rules prepared for the transfer. Each network uses its own protocols, network administrator, to manage operations within the network. Note that this item is a software element and is used by SetSoftware

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