1. Approach to describing user network sessions
2. Computer networks and why they exist
3. Example of a computer network
4. The joys of uptime
5. Point-to-point connections?
6. The switch
7. Resource sharing
8. Examples of network services
9. A network by any other name ...
10. Computer and human communications
11. Communications between humans
12. Communications between computers
13. Codes: the language of computer networks
14. Private instant messaging, chat rooms, and email
15. Just about everything needs synchronization
16. Codes: we've been using them for centuries
17. Binary numbers: bits, bytes, nibbles, and, sometimes, octets
18. Extending the analogy
19. The path between the computers
20. Sending and receiving user traffic on the communications link
21. Voice signals
22. Data signals
23. Is the link analog or digital?
24. Bits and codes on the link
25. Bits, bandwidth, and broadband networks
26. One way to increase bandwidth
27. Comparison of two different bandwidths
28. Why longer bits are more robust
29. Error detection: computers and humans
30. Multilevel coding
31. The modem and the telephone network
32. Defining the problem
33. Examining the solution
34. Modulation methods
35. Connecting to the telephone network
36. Sending ted's "payload" to bob
37. Location of the modem
38. Digital networks
39. Advantages of digital networks
40. Digital voice
41. Analog-to-digital conversion
42. It's all a matter of 1s and 0s
43. The all-digital network
44. Bit rates and broadband networks
45. Response time
46. Examples of bit rates
47. Broadband systems revisited.