Network refers to a group of interconnected devices, such as computers, servers, printers, and smartphones, that can communicate and share information with each other. These devices are connected through physical cables (like Ethernet) or wireless technologies (like Wi-Fi).
Types of Networks:
- Local Area Network (LAN): Connects devices within a limited area, like a home, office, or school.
- Wide Area Network (WAN): Connects devices over a large geographic area, often using public telecommunication networks.
- Metropolitan Area Network (MAN): Connects devices within a city or metropolitan areas.
Network Functions:
- Data transmission: Allows the transfer of data between devices.
- Resource sharing: Enables devices to access and share resources like files, printers, and software.
- Communication: Facilitates communication between users through email, messaging, and video conferencing.
Network Components:
- Nodes: Individual devices connected to the network.
- Links: The physical connections between nodes.
- Network devices: Devices that manage and control network traffic, such as routers, switches, and hubs.