MIS 111 Lecture Notes - Lecture 18: Carterfone, Category 5 Cable, Synchronous Optical Networking

• School: University of Arizona
• Department: Management Info Systems Main
• Course: MIS 111
• Professor: Mark Patton, William Neumann

Document Summary

Communication: all communications require, transmitters/senders and receivers (actors, transmission/senders and receivers (actors, rules of communication (protocol, a message (content) Definitions: data communications, the movement of computer information from one point to another by means of electrical or optical transmission systems, such systems are called data communications networks, telecommunications, includes the transmission of voice, video, and data. System network: 1970 permitted mci to provide limited long-distance service in competition to. Telecommunications development parallels globalization: telegraph & telephone (19th century, satellite communications (1960s, digital communications (1980s, internet age (1990s, wireless communications (2000s) Types of data transmitted: analog data (human voice, sound waves, which vary continuously over time, digital data (computer data, binary data represented as a series of ones and zeros. Kbps: dedicated t, t3, sonet, or atm connections, often used by larger organizations; much faster and more expensive than consumer-oriented pots or isdn connections.