CIS 1200 Lecture Notes - Lecture 13: Data Integrity, Email Client, Ray Tomlinson

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1200
• Professor: John Saville

Document Summary

Local networks that run the internet are owned by government agencies, individuals, universities, and private companies. U. s taxpayers use to pay for the entire bill for the internet, but as the internet grew organizations were formed to manage it. The i(cid:374)te(cid:396)(cid:374)et is (cid:272)o(cid:374)(cid:374)e(cid:272)ted th(cid:396)ough a (cid:862)(cid:374)et(cid:449)o(cid:396)k of (cid:374)et(cid:449)o(cid:396)ks(cid:863) Private sector companies makeup the internet system, and the data exchange mechanism is known as an internet exchange point (ixp) Ixp is made up of one or more network switches which isp connect to. Networks can reduce the costs and improve the speed and efficiency by connecting directly to each other through ixp"s. Individual users enter an isp through a point of presence (pop) Majority of internet connections follow the client/server model: clients are devices such as computer, tablets, smartphones etc, servers that make up the internet: Web servers: provides web space for web pages and other information and provide web pages to clients.