1. Networks and Telecommunications Strategies Dr. Robert Chi Chair and Professor, IS department Chief editor, Journal of Electronic Commerce Research

2. Why communicate? Share –Hardware –Software –Data –Information To –Work collaborately –Work effectively

3. How to communicate? Signals –Digital –Analog Channels –Wired Twisted Pair Wire (digital) Coaxial Cable (digital) Fiber optics (analog) –Wireless Radio, microwave and Infrared (analog)

4. Types of networks By Scale –Local Area Networks –Wide Area networks By Structure –Shared networks (Bus, ethernet) –Switched networks (Star) –Enterprise networks (hybrid)

5. Components of networks Modem Router Switch Gateway Bridge Hub

6. Transmission Digital transmission –Digital or analog signals –repeaters Analog transmission –Analog signals only –Amplifiers

7. TCP/IP TCP (transport control protocol) –How data are organized IP (Internet protocol) –Where data are going to

8. Packet switch vs. circuit switch Packet Switch –Use packets –No busy lines –Many alternative routes Circuit Switch

9. Cell phone technologies 1G –Analog transmission 2G –Digital Transmission –20 Kbps 3G –Digital Transmission –2 mbps

10. The trend Integration –browser, cell, camera, TV, scanners.. Intelligent –Intelligent agent, Interactivity

11. Exercise 1-2 students in a group Discuss and design a network for your company –What is the current network configuration in your company –What could be the future network configuration in your company in 10 years