ITM 102 Lecture Notes - Local Area Network, Digital Subscriber Line, Internet Service Provider

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 102
• Professor: Franklyn Prescod

Document Summary

Convergence: telephone networks and computer networks converging into single digital network using internet standards, e. g. cable companies providing voice service. Broadband: more than 60% canadian internet users have broadband access. Broadband wireless: voice and data communication as well as internet access are increasingly taking place over broadband wireless platforms. What is a computer network: network interface card (nic, network operating system (nos, routes and manages communications on the network and coordinates network resources, dedicated server computer, hubs, routers. Hundreds of local area networks (lans) linked to firm-wide corporate network. Various powerful servers: web site, corporate intranet, extranet, backend systems. Key digital networking technologies: client/server computing, packet switching, tcp/ip and connectivity. Packet switching: messages are first broken down into small bundles of data called packets, packets are sent along different communication paths as paths become available, packets are reassembled once they reach their destinations.