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Ch 1. Computer Networks and the Internet

2. What is the Internet?. One sentence definition? A nuts-and-bolts descriptionA service descriptionA nuts-and-bolts descriptionHosts or end systemsA network of communication links and packet switchesTransmission ratePacketsPacket switches: routers and link-layer switchesRoute or pathInter

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Ch 1. Computer Networks and the Internet

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    1. Ch 1. Computer Networks and the Internet Myungchul Kim mckim@icu.ac.kr

    2. 2 What is the Internet? One sentence definition? A nuts-and-bolts description A service description A nuts-and-bolts description Hosts or end systems A network of communication links and packet switches Transmission rate Packets Packet switches: routers and link-layer switches Route or path Internet Service Providers (ISPs) Protocols: TCP and IP Internet Standards: Request for comments (RFCs) by IETF Intranet

    3. 3 A service description An infrastructure for providing services to distributed applications: remote login, electronic mail, Web surfing, instant messaging, VoIP, audio and video streaming, Internet telephony, distributed games, peer-to-peer (P2P) file sharing, IPTV Application Programming Interface (API) Protocols Figure 1.2.

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