The Fundamentals of Computer Networking

The Fundamentals of Computer Networking

A computer network is a collection of two or more computers that communicate with one another through the use of a communication medium. The communication channel may take the form of radio waves, cables, infrared, optical fibers, or any other kind of electromagnetic radiation.
The computer network is an integral part of our daily lives, with the most important reason being the ability to communicate with other people. Computer networking is used to share resources such as fax machines, printers, modems, files, and so on. It also has additional applications such as database servers, computer servers, email, chat, and the internet, among others. The computer to which the resources are attached is referred to as the server, and the other computers that connect to the resource are referred to as clients. There are no servers in peer-to-peer computer networks, which means they are completely decentralized.
It is possible to reduce the cost of operation by sharing fax machines, printers, and modems among a large number of computers and users. In a computer network, a database is a very important application because it stores and runs a large amount of important data and jobs. For instantaneous communication and file transfer over a computer network, email and chat programs can be used effectively.
Local area networks (LANs), wide area networks (WANs), metropolitan area networks (MANs), and personal area networks (PANs) are the four types of computer networks that are categorised according to their size (PAN). There are three types of network topologies: Bus Network, Ring Network, and Star Network. The topology (which refers to the way computer networks and network resources are linked) of the network may be categorized as follows:
Wiring, network cards, and a hub are the most important components of the networking gear. The use of computer network cards is required in order for one computer to understand what the other computer is “talking” about. Network cards are assigned a unique MAC address that allows computers on a computer network to be identified. Hubs are devices that link all of the computers on a network. Hubs may also be used to link to other hubs, allowing the size of the computer network to be increased significantly. Two computers may be linked together for communication by utilizing Ethernet cards, phone lines, or power lines, with hardware kits costing around $100 or less.
In an office or at home, as the number of computers rises, so does the number of cords, making wireless networking a potential option. Communication between computers and devices is accomplished via the use of radio transceivers or infrared signals in wireless networking. The technologies of Wi-Fi and Bluetooth, for example, are examples of wireless networking, yet there may be security concerns associated with wireless networking. Consumers, on the other hand, have clearly shown a growing preference for wireless networking in recent years.
Computer networks have given the twenty-first century a whole new dimension. Compared to the actual world, the cyber world is far quicker and more expansive nowadays. All of this has been made feasible because to the widespread use of computer networks. Computer networks have transformed almost every aspect of human effort, including commerce, communication, travel, research, military, and society. The advancement of computer networks has aided the technology revolution in making significant strides ahead.

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