ITM 102 Study Guide - Final Guide: Wireless Lan, Telephone Network, Distributed Computing

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 102
• Professor: Bharat Shah

Document Summary

Chapter 7-- telecommunications, the internet, and wireless technology. Convergence--telephone networks and computer networks converging into single digital network using. Broadband---more than 74 percent u. s. internet users have broadband access. Broadband wireless--voice, data communication are increasingly taking place over broadband wireless platforms. Major components in simple network: client and server computers, network interfaces (nics, connection medium, network operating system (nos, hubs, switches, routers. Functions of switches and routers managed by central program. Networks in large companies-- hundreds of local area networks (lans) linked to firm-wide corporate network. Various powerful servers---website, corporate intranet, extranet & backend systems. Videoconferencing system & telephone network, wireless cell phones. Protocols: rules that govern transmission of information between two points. Common worldwide standard that is basis for the internet. Four layers: application layer-transport layer-internet layer-network interface layer. Modem: translates digital signals into analog form (and vice versa) Physical transmission media: twisted pair wire (cat5, coaxial cable, fiber optics cable, wireless transmission media and devices, satellites, cellular systems.