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Computer networks connect multiple devices and computers to each others, allowing them to share resources and data. This allows companies to communicate more effectively and increase productivity, as well as give better service to customers. A computer network is composed of two fundamental components: nodes or devices and links. Nodes are the communication endpoints such as printers, computers as well as mobile devices, while links are the physical connections that carry information between them. They include cables, fiber optics and wireless signals like Wi-Fi. Data is sent from one device (or device) to another via a set pre-programmed communication protocols.
Computer networks are most beneficial when they permit users to share hardware and software resources. For instance, a network could allow many employees to access the same printers and scanners. This reduces costs and increases productivity because each employee does not need to have their own equipment. It also facilitates the easy sharing of documents, which can make processes easier in areas like project collaboration as well as record keeping. Computer networks also make it easier for businesses to manage and control large amounts of data. This can be beneficial for industries such as banking, insurance, and marketing.