ADMS 2511 Chapter Notes - Chapter 4: Transport Layer, Distance Education, Offshoring

• School: York University
• Department: Administrative Studies
• Course: ADMS 2511
• Professor: Peter Rumyee

Document Summary

What is a computer network: computer network system that connects computers and other devices via communications media. Data and information can be transmitted: bandwidth transmission capacity of a network. Stated in bits per second: broadband network transmission capacities ranging from approximately 1m bits per second to 175 megabits with fibre-to-the-home. Dsl digital subscriber line: types of computer networks, local area networks. Connects two or more devices in limited geographical region. Every device on network can communicate with every other device. Figure 4. 1: every device has a network interface card (nic) that allo(cid:449)s de(cid:448)i(cid:272)e to physi(cid:272)ally (cid:272)o(cid:374)(cid:374)e(cid:272)t to lan"s communications medium. Many lans have a file server or network server. Houses lan"s (cid:374)et(cid:449)o(cid:396)k ope(cid:396)ati(cid:374)g syste(cid:373: wide area networks. Used when data is beyond the confines of lan. Wide area networks networks that cover large geographic area. Router communications processor that routes messages from a. Lan to the internet across several lans: enterprise networks.