Chapter 5: Data Communications Basics 1. Give a brief description of each these network forms: - LAN: Local Area Network, used in business locations where most of the information is being exchanged within the building - HAN: Home Area Network, bringing LAN technology into the home, like with Wi-Fi, so that people can do business from their homes - PAN: Personal Area Network, network that serves a single person or small workgroup and is characterized by limited distance, limited throughput, and low volume. 2. What is a modem? What are the three forms of modulation scheme they can use? A modem is a machine that alters the carrier signal based on whether it is transmitting a one or a zero. The three forms of modulation scheme they can use are amplitude, frequency, and phase modulation.
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This note was uploaded on 07/13/2011 for the course IST 220 taught by Professor Angsanaa.tech. during the Summer '07 term at Penn State.