After you have read this chapter, you should be able to:

1. Discuss connectivity, the wireless revolution, and communication systems.

2. Describe physical and wireless communications channels.

3. Discuss connection devices, including modems, T1, DSL, cable modem, satellite, and cellular connections.

4. Describe data transmission factors, including bandwidths and protocols.

5. Discuss networks and key network terminologies.

6. Describe different types of networks, including local area, metropolitan

area, and wide area networks.

7. Describe network architectures, including configurations and strategies.

8. Describe organizational uses of Internet technologies, including intranets, extranets, and firewalls.