Chapter 9 . Networking and Telecommunication. Topics. Linking Up: Network Basics Electronic Mail, Teleconferences, and Instant Messages: Interpersonal Computing Converging Communication Technologies: From Messages to Money. Linking Up: Network Basics.
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Computers send digital signals. The modem (modulator/demodulator) converts the digital signals to analog so that the message can be transmitted through telephone lines.
The modem (modulator/demodulator) converts the analog signals back to digital signals that are understood by the computer
Local-area network (LAN)
Wide-area network (WAN)
Server software responds to client requests by providing data
Client software sends requests from the user to the server
Lotus Notes is a groupware application that facilitates information sharing and workgroup collaboration.
Networks are built on physical media.
What affects network performance?
“Never in history has distance meant less.”