MIS 111 Lecture Notes - Lecture 32: Transatlantic Communications Cable, Samuel Morse, Carterfone

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

Document Summary

Communications: 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. Communication architecture: all communications require, transmitters/senders and receivers (actors, transmission medium (infrastructure, rules of communication (protocol, a message (content, transmitter --> message (medium) --> receiver. Network: 1970 - permitted mci to provide limited long distance service in competition to at&t. Telecommunications development parallels globalization: telegraph and telephone, 19th century. 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. Transmission type: analog data - analog transmission, radio, broadcast tv, analog data - digital transmission, pcm & video standards using codecs, digital data - analog transmission, modern-based communications, digital data - digital transmission, lan cable standards.