A computer network is a collection of interconnected devices that can communicate with each other and share resources such as data, files, and hardware. These networks enable devices to exchange information and facilitate various services.
Examples:
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Local Area Network (LAN): A home network where multiple computers, printers, and smartphones are connected through a router allowing them to share files and internet access. For instance, all devices connected to a Wi-Fi network in a household form a LAN.
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Wide Area Network (WAN): The internet is a prime example of a WAN, connecting millions of devices across the globe, enabling communication, sharing of information, and access to services regardless of geographical location.
In summary, computer networks can range from small local networks in homes to extensive global networks like the internet, facilitating communication and resource sharing.