How Does a Computer Network Work?
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A computer network is a system of interconnected computers that are able to exchange data with one another. In a network, there are two basic components: the physical hardware that carries the signals, such as cables and routers; and the software that runs on the computers and controls how information is transmitted.
When computers in a network are connected, they can communicate with each other via various communication protocols. The most common protocol is TCP/IP (Transmission Control Protocol/Internet Protocol), which is used for exchanging files over the internet.
To send a file from one computer to another, the sending computer must first convert the file into data packets that can be transmitted over the network. It does this by breaking up the file into smaller chunks of data, adding a header to each packet, and assigning a destination address. The destination computer receives the packets, reassembles them into the original file, and then processes it.
In addition to data transfer, networks also allow computers to share resources, like printers and storage devices. This is done by broadcasting a request for a resource over the network, and then the computers that have the resource respond with their availability. Networked computers can also communicate with each other directly, allowing users to chat or collaborate on projects.