ITM 100 Chapter Notes - Chapter 7: Usenet Newsgroup, Unified Communications, Ieee 802.11

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 100
• Professor: Morteza Hiyat Kermati

Document Summary

Chapter 7 - telecommunications, the internet and wireless technology. Principal components of telecommunications networks and key networking technologies. Telephone networks handled voice communication and computer networks handled data traffic. Now transforming into a single digital network using a shared internet-based standards and technology (expanded to include internet telephone +video services) Network consists of two or more computers. Includes: client computer, dedicated server computer, network interfaces, connection medium, network operating system, hub or switch. Network operating system routes and manages communications on the network and coordinates resources. Hubs = simple devices that that connect network components, sending packet of data to all other connected devices. Switch is bette b/c filter + forward data to specified destination on the network. Router = communications processor that sends data through different networks, and makes sure it gets sent to the right place. Software defined networking (sdn) = new networking approach in which many functioned by one central program.