What is Wide Area network ? Create a video with Clean, accurate visualization with no errors in text, pictures and explanation. Make it in 4k VIDEO, with no redundant explanation and messy pictures and illustrations, make the illustration in HD with no errors and no messy images or illustrations.
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A Wide Area Network, or WAN, is a telecommunications network that extends over a large geographic area. Unlike local networks that connect devices in a single building, WANs connect multiple smaller networks across cities, countries, or even continents using public telecommunication infrastructure.
Networks are classified by their coverage area. A LAN or Local Area Network connects devices within a single building or campus. A MAN or Metropolitan Area Network covers a city or metropolitan area. A WAN or Wide Area Network spans the largest areas, connecting networks across countries and continents using public telecommunication infrastructure.
WANs use various technologies to connect networks across long distances. Fiber optic cables provide high-speed data transmission and can be laid underwater between continents or underground across countries. Satellite links offer global coverage and can reach remote areas where cables are not feasible. Cellular networks using 4G and 5G technologies provide wireless WAN access for mobile devices and remote locations.
WANs are used in many real-world applications. The Internet is the world's largest WAN, connecting billions of devices globally. Corporate networks use WANs to connect branch offices and enable remote employee access. Banking systems rely on WANs for ATM networks and secure financial transactions worldwide, allowing real-time processing across different locations.
To summarize what we have learned about Wide Area Networks: WANs are telecommunications networks that span large geographical areas, connecting multiple smaller networks using public infrastructure. They enable global communication through technologies like fiber optic cables, satellites, and cellular networks. WANs are essential for modern connectivity, powering everything from the Internet to corporate and banking systems worldwide.