ITM 102 Lecture 10: Telecommunications, the Internet 11 02 15

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 102
• Professor: Ozgur Turetken

Document Summary

Major components in simple network: client and server computers, network interfaces (nics, connection medium, network operating systems, hubs, switches, routers. Software-defined networking (sdn): functions of switches and routers managed by central program. Hundreds of local area networks (lans) linked to firm wide corporate network. Various powerful servers: web site, corporate intranet, extranet, backend systems. Tcp/ip and connectivity: protocols: rules that govern transmission of information between two points, transmission control protocol/internet protocol (tcp/ip) Common worldwide standard that is basis for internet. Signals: digital vs. analog: modem: translates digital signals into analog form (and vice versa) Types of networks: local-area networks (lans) Client/server vs. peer-to-peer: wide-area networks (wans, metropolitan-area networks (mans, campus area networks (cans) Wireless transmission media: microwave, satellite, cellular. Convergence: telephone networks and computer networks converging into single digital network using internet standards. Broadband: more than 90% of canadian internet users have broadband access. Broadband wireless: voice, data communication are increasingly taking place over broadband wireless platforms.