01:198:170 Lecture Notes - Lecture 4: Local Area Network, Internet Protocol, Facetime

• School: Rutgers University
• Department: Computer Science
• Course: 01:198:170
• Professor: Stephen Stoll

Document Summary

Communication types of the internet: synchronous: both parties can talk & listen at the same time, asynchronous: can"t talk & listen at the same time; you go back and forth with responses. Broadcast: change synchro. /asynchro. communication depending on audience; you can talk & a lot of ppl can listen at the same time (broadcaster has no idea who"s listening; can be 1 person or millions) Multicast: you have multiple pts of reference who are broadcasting/receiving at the same time (ie: virtual conference meetings, telecommuting) Point-to-point/unicast: screening services; make connection w/ server, which then sends info you ask for (from their computer to your computer; ie: net ix is point- to point and asynch. ) The internet = universal communication medium: diff. computers linked together, dept. of defense funded creation of internet during ww2, allied forces took down landlines of enemies. Monday, september 19, 2016: there is a powerful pc that communicates w/ multiple clients.