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A computer network is a collection of interconnected devices, such as computers, servers, routers, switches, and other networking equipment, that are connected together to facilitate communication and data sharing. These devices are typically connected through wired or wireless connections, allowing them to communicate with each other and share resources. Computer networks can be classified into different types based on their size, geographical coverage, and purpose. Some common types of computer networks include: 1. Local Area Network (LAN): A LAN is a network that covers a small geographical area, such as an office building or a home. It is used to connect devices within a limited area and typically provides high-speed data transfer rates. 2. Wide Area Network (WAN): A WAN is a network that spans a large geographical area, such as a city, country, or even multiple countries. It is used to connect devices that are far apart from each other and often relies on public infrastructure, such as the internet, to facilitate communication. 3. Metropolitan Area Network (MAN): A MAN is a network that covers a larger geographical area than a LAN but smaller than a WAN. It is typically used to connect multiple LANs within a city or metropolitan area. 4. Wireless Network: A wireless network is a type of network that uses wireless connections, such as Wi-Fi or Bluetooth, to connect devices. It allows for mobility and flexibility as devices can connect to the network without the need for physical cables. 5. Campus Area Network (CAN): A CAN is a network that is used to connect multiple buildings within a university campus or corporate campus. It provides high-speed connectivity between different buildings and facilitates resource sharing. 6. Storage Area Network (SAN): A SAN is a specialized network that is used to connect storage devices, such as hard drives or storage arrays, to servers. It allows for centralized storage management and facilitates data sharing and backup. 7. Virtual Private Network (VPN): A VPN is a network that provides secure and private communication over a public network, such as the internet. It is often used by remote workers or businesses to securely access resources on a private network. These are just a few examples of computer networks, and there are many other types and variations depending on the specific requirements and needs of an organization or individual.
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