Network Terminology …

Remember: Knowledge is Power!

What networks do you use?

The network is like a phone system …

The network is like a phone system …

Anything can be connected …

… as long as the two parties can communicate …

ComputersPDA’sGames – XboxAppliances – fridge, oven

Protocol …

The way two parties communicate with each other:You look up my number in the phone book Pick up the phone Dial the number Wait for me to answer We have the conversation At the end of the conversation, we both

hang up

Computers use protocol as well …

Computer A: I need to communicate with Computer B. My user has an MSN Messenger item for a user on Computer B

Computer A: What "number"/designation is Computer B on these days? Don't know- let's look in The Directory.

Computer A: Aha, the directory says that Computer B is on number (e.g 169.145.72.9) at the moment!

Computer A: I'm sending a request to Computer B on (169.145.72.9):- Request = "Let's Talk / Connect!"

Computer B: Answers connection request from Computer A. Computer B: "Hi there Computer A, long time no connect. Ok, let's

connect and exchange information" Computer A: "Great. Here's an MSN messenger item for your user" Computer B: "Thanks, got it! Nice chatting with you. Is there anything

else?" Computer A: "Nope, that's it for now. See you later" Computer B: "No problem, Bye for now" Computer A disconnects from B

Some protocols you might know …

IP – Internetworking protocolhttp – hypertext transfer protocolftp – file transfer protocolSmtp – simple mail transfer protocol

The IP address

How does the network know how to communicate with your device?

Every computer connected to network has an IP address.

Your computers IP Address is made up of four numbers each separated by a dot. It will look something like this: 169.158.2.1.

TCP/IP - What Does It Mean?

TCP – transfer control protocolIP – Internetworking protocolThis is the most commonly used

networking protocol, and the one used on the Internet

A graphic example …

A graphic example …

A graphic example …

What you need to know …

Your work computer is part of a network File storage Printing Internet – a link to the Wide Area Network (WAN)

Your computer (home and work) has an IP address which identifies it

With a router, you can create your own mini network

The computers communicate via various protocols