What is network?
✅ Network
collection of interconnected devices that communicate with each other
☑️ Components of network
- Nodes: any device connected to network
- Links: connection between nodes
- cable
- wireless
- Protocols: set of rules
- Network Topology: layout, structure of network
☑️ Type of Network
- LAN: local area network, 자기만의 구역에서 연결
- WAN: wide area network
- onnect LANs
- biggest WAN: Internet
- 인터넷: 각 국가 WAN을 인터네트워킹 한 것
- PAN: personal area network
- MAN: metropolitan area network
- city, campus
- ISP: Internet Service Provider로부터 인터넷 제공받는다.
☑️ WWW
WWW: 전세계에 인터넷 보급하는데 핵심 역할
web: 인터넷을 통해 사람들과 정보를 공유하는 공간
인터넷에서는 WWW(웹) 이외에도 많은 것들이 돌아간다.
☑️ Function of network
- resource sharing
- data communication
- centralized management
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