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Keywords 🗝️
network, LAN, WAN, PAN, file sharing, printer sharing, Wi‑Fi, UTP cable, fibre optic, Bluetooth, personal area network, local area network, wide area network, resource sharing, security risk, internet.
Summary 📝
Networked computers are connected to other devices, allowing them to share resources and communicate with each other. Standalone computers operate independently and cannot interact with other devices.
A Local Area Network (LAN) is a network that connects computers and devices in a small geographical area, like a home, school, or office. It enables efficient sharing of files and printers but is limited in size.
A Wide Area Network (WAN) connects LANs over a broader geographical area, often using the internet. WANs allow communication between distant locations, large geographical areas, but may suffer from slower speeds.
Advantages of networks include resource sharing, increased communication, and collaborative work. However, they also face challenges like security risks, dependence on a central server, and potential data breaches.
Networked computers enable efficient communication and resource sharing, with LANs suited for smaller areas and WANs for connecting larger geographical regions.
Key learning Points 📌
A network links two or more devices so they can share resources and communicate.
LAN (Local Area Network) covers a small area like a school or office. It is usually owned and managed by a single organisation and can use cables (UTP or fibre) or Wi‑Fi.
WAN (Wide Area Network) connects LANs over large distances, often using infrastructure owned by telecom companies (e.g. the Internet), which is slower and under shared ownership.
PAN (Personal Area Network) connects personal devices within about 10 m, typically via Bluetooth.
Networking advantages include sharing files, printers and internet access. Disadvantages include higher security risks and possible central points of failure.