IT246

INTRODUCTION TO NETWORKS

Prof. Alfred J Bird, Ph.D., NBCTabird@cs.umb.edu

Door Code: 52461*

Office – McCormick 3rd floor 607Office Hours – Monday and Thursday 3:00PM to 3:45PM

Assessment

Projects 30% Quizzes 30% Readings 10% Final Project 30%

Required Resources!

A Good Lab Notebook A portable storage device (USB

JumpDrive) Networking Essentials, 3rd Edition, Jeffery

Beasley, Prentice Hall, ISBN978-0-7897-4903-1

What is a Network?

Why do we have networks?

How do you make a phonecall?

How do you make a phonecall?

Hardware connections Rules for the conversation

How do you make a phonecall?

Hardware connections (Network) Rules for the conversation (Protocols)

A Network

A network (of any kind) has the same two parts: The connection mechanism The rules for the exchanges

In a Computer Network these are called The hardware connections (wire, radio, light,

etc.) The rules for the data exchange (protocols)

Network Topologies

Bus Ring Star Mesh

Network Models

OSI TCP/IP

OSI Model

Seven Levels 7 – Application 6 – Presentation 5 – Session 4 – Transport 3 – Network 2 – Data Link 1 - Physical

TCP/IP Model

4 – Applications 3 – Transport 2 – Internet 1 – Network Interface

For Next Time

Read and Summarize (2 pages - typed) Chapter 1 – Pages 1 -88, Computer Networks -

A Tanenbaum - 5th edition (it is on the wiki)