Internet A simple introduction 400410048 黃韻文 400410082 申逸慈.

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Presentation transcript:

Internet A simple introduction 黃韻文申逸慈

What is the Internet ● Connected computing devices ● Communication links ● Packet switches

What is the Internet ● Internet : network of networks - Interconnected ISPs ● Protocols - TCP, IP, HTTP, etc ● Internet standard - RFC, IETF

What is the Internet ● Provides services to apps ● Provides programming interface to apps

Protocol A human protocol A computer network protocol

Protocol govern all communication activity in Internet ● Define format 、 order 、 messages sent and received among network entities ● Define actions taken on messages transmission 、 receipt