Introduction to Computer Internship

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Presentation transcript:

Introduction to Computer Internship Unit 1

Basic Networking Concepts Goal: Understand basic concepts and terminology associated with computer networking Unit 1

Network Concepts Outline Communication Lines Protocols & Packets Routing & Bridging Services Client Computers & LANs Unit 1

Basic Terms Local Area Network (LAN): A computer network limited to the immediate area, usually the same building Wide Area Network (WAN): A computer network that covers a large geographic area Unit 1

Who You Should Know Internet Engineering Task Force (IETF): The Internet “standards” committee http://www.ietf.org/ Unit 1

Communication Lines Used to connect you LAN to the world Typically leased from a telecommunications company Think of as a “pipe” Examples include telephone line, ISDN, 56KB, T1, fiber optic Unit 1

Protocols & Packets Packets are “chunks of data” that are transmitted on a communication line Protocols are the languages spoken by a computer on a network Unit 1

Routing A router is a device connected between a LAN and a WAN that directs packets to multiple communication lines and devices “Routing” is the act of directing packets Unit 1

Servers & Services A Server is a computer system that performs various operations for the whole network A Server performs Services such as Web publishing, E-mail, filtering, and news. Unit 1

Client Computers & LANs Client computers are the desktop systems that users (people) use They use the network Services They must be connected to a LAN that can support the desired protocol Unit 1

Networking Tutorial Working Together [insert picture here] Unit 1

You gotta network! Client Client File Server What is a network? Hub NIC Card NIC Card Client Client Unit 1

Now, you got two! What do you do? File Server LAN 1 NIC Card Client NIC Card Client NIC Card Client Hub Hub Patch Panel Hub Hub Patch Panel Hub File Server Hub NIC Card Client NIC Card Client NIC Card Client LAN 2 Unit 1

LAN 1 Router LAN 2 Switch Switch File Server File Server Patch Panel Hub Hub Hub Hub Hub Hub Client Client Client Client Client Client Unit 1

The WAN McDonough T1 Lines LaPlata FS FS FS Internet Switch Central Office Router Hub OLG Router FS McDonough T1 Lines Router LaPlata Router Switch Switch Switch FS FS FS Internet Hub Hub Hub Hub Hub Hub Hub Hub Hub Client Client Client Client Client Client Client Client Client Unit 1