This course is designed for novice programmers, entry level engineers and newcomers to Web Development who want to learn or revise the basic concepts related to computer networks.

The course is intended to be a refresher that can be completed in 10 hours.

Introduction to Computer Networks (ICN)

<ul><li>A local area network (LAN) is a group of computer and peripherals connected to a common communication medium such as ethernet, cable or wireless link .&nbsp;</li><li>Generally a LAN is spread over a small geographical area such as a single room, office building or group of buildings.&nbsp;</li><li>This LAN can be connected to other LANs via radio waves, telephone lines or ISDN. </li><li>Users on a LAN can communicate via email or chat. </li><li>Switches and Routers are also used to connect the devices on the LAN</li></ul>Typical components of a LAN are <ul><ul><ul><li>workstations</li><li>personal computers</li><li>Printers</li><li>Storage Devices&nbsp;</li></ul></ul></ul>Design a LAN Network using the components given in the below interactive box.

TCP

TCP/IP Protocols

UDP

TCP vs UDP

Networks

What happens when you type a URL in the browser to access a website ?

Internet Protocol IPv4

Internet Protocol IPv6

HTTP

LAN