All of you should be able to define computer network

Most of you will be able to identify the main elements of networks and their main types.

Some of you will be able to describe how a network works.

Lesson Objectives

NetworksIng. Omar Alvarez Badillo

What is a computer network?

Collection of computers or digital devices interconnected (through an specific medium) with the aim of sharing resources and sending and receiving information.

What is a computer network?

In which two ways can you connect your laptop to a network?

Network connecting mediums

Wired Ethernet Cable Coaxial Cable Fiber Optics

Wired mediums of connection

Bluetooth

WiFi

Wireless mediums of connections

Network

Computers Network Switch

Computer networking device that can connect two or more networks/devices between them.

They can have from 4 up to 32 Ethernet ports. Router

Computer networking device that forwards information between two networks

What kind of devices can we find in a Network?

Wireless Access Point (AP)

Firewall

Servers

What kind of devices can we find in a Network?

Network

Switch or Hub Wireless Access Point

Server

Can all the computers use the printer?

Switch or Hub Wireless Access Point

Server

Comp 1

Comp 2

Comp 3

Comp 4 Comp 5

Can I see a file that is in Comp1 from Comp5?

Switch or Hub Wireless Access Point

Server

Comp 1

Comp 2

Comp 3

Comp 4 Comp 5

Can I share data between Wired and Wireless network?

Switch or Hub Wireless Access Point

Server

Comp 1

Comp 2

Comp 3

Comp 4 Comp 5

If I wanted to connect the network to the Internet, how

would I do it?

Switch or Hub Wireless Access Point

Server

Comp 1

Comp 2

Comp 3

Comp 4 Comp 5

How is the information sent from Comp 1 to Computer 2?

Switch or Hub Wireless Access Point

Server

Comp 1

Comp 2

Comp 3

Comp 4 Comp 5

What is an IP address and why are they used for?

Switch or Hub Wireless Access Point

192.168.0.7

192.168.0.2

192.168.0.3

192.168.0.4

192.168.0.5 192.168.0.6

IP stands for Internet Protocol A unique address inside a network that

allows us to identify each computer. Built by 4 blocks of numbers ranging

between 0 and 255. Ex: 192.168.0.5 168.0.15.2

IP address