6. I/O Devices on Nets - Dumb Terminals User Interface of an Application (text based interface) What it looks like if you connect to host using a PC (text based interface inside a window)
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9. Topologies - Node layout + (protocol ) Pictures show PC nets (LANs) but can use for internetworking too Star (circuit switch or traffic host) Bus (contention) Tree (a set of bus nets) Ring (packet switch) Peer to Peer (store & forward) A A B B C C D A B C D network ready printer (Switch, router, gateway) or host A B C E D print server net server
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16. Networking Part II Internetworking Issues Source Issues Telecomm Architectures Telecomm Software