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1ESO - UNIT 1: INTERNET BASICS

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Moisés Llorente Santos

on 20 September 2016

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Transcript of 1ESO - UNIT 1: INTERNET BASICS

Before starting... a few questions to debate!
CHOOSE ONLY ONE!
COMPONENTS OF A SIMPLE COMPUTER NETWORK (WITH INTERNET CONNECTION)
COMMUNICATION SYSTEMS
TECHNOLOGY, PROGRAMMING AND ROBOTICS
1ºESO - SCHOOL YEAR 2016/2017
TEACHER: MOISÉS LLORENTE

A brief diagram of the internet process...
HOW PACKETS ARE REORDERED AT DESTINATION?
UNIT 1: INTERNET BASICS. SAFETY.
Which of the following pictures best describes INTERNET? Vote for just one!
Message
IP: 192.198.0.1
ROUTER
a
b
c
d
INTERNET
SERVICE
PROVIDER
(ISP)
b
a
c
d
b
d
c
a
INTERNET
SERVICE
PROVIDER
(ISP)
a
d
c
b
a
d
c
b
ROUTER
b
c
d
a
Message
IP: 192.154.20.33
All packets are labeled following the rules of a protocol.
This protocol is called TCP/IP (Transmission Control Protocol/Internet Protocol).
Every information packet must have:
IP address of sender.
IP address of destination.
Type of message.
Position in the whole message.
ROUTER
Definition:
is a device that lets us to connect a computer (or a network of computers) to the internet, directing all the information packets to their destination.
COMPONENTS OF A SIMPLE COMPUTER NETWORK (WITH INTERNET CONNECTION)
WEB SERVER

Definition:
is a set of big computers that store information and resources to make them available to the whole network.
GROUPAL ACTIVITY
SIMULATION OF A SIMPLE INTERNET COMMUNICATION
DIAGRAM OF A SIMPLE COMPUTER NETWORK (WITH INTERNET CONNECTION)
RJ-45
HUB/SWITCH
ROUTER
internet
(web servers)
FIREWALL
COMPONENTS OF A SIMPLE COMPUTER NETWORK (WITH INTERNET CONNECTION)
Definition:
is a card that enables a computer to connect to a network, using a RJ-45 cable.
NETWORK CARD (A.K.A."Ethernet card")
COMPONENTS OF A SIMPLE COMPUTER NETWORK (WITH INTERNET CONNECTION)
HUB / SWITCH
Definition:
is a device that lets us to connect more than one computer to a network.
COMPONENTS OF A SIMPLE COMPUTER NETWORK (WITH INTERNET CONNECTION)
FIREWALL
Definition:
is a security system that protects our computer (or computers network) from external attacks and viruses.
A computer (client) with a router.
A firewall.
Two web servers (with two different pictures to be served)
GROUPAL ACTIVITY
MAIN IDEAS (1. The internet)
1. What is a network?
2. What is internet?
3. How is the information sent through the internet (packets)?
4. What is a router? Which is its function?
5. What is a network card?
6. What is a firewall? Why is it important?
7. What is a web server?
8. Diagram of a simple computer network (with internet connection).
How many ways of communication do you know?
What is, in your opinion, the meaning of "internet"?
What do you do to stay safe when surfing on the internet?
A)
B)
C)
D)
Interlocutor 1
Interlocutor 2
Message
Media
Interlocutors?
Messages?
Media?
Code?
COMMUNICATION SYSTEMS
Interlocutor 1
Interlocutor 2
Message
Media
Interlocutors?
Messages?
Media?
Code?
p.6
http://www.plickers.com
Create a word document to write the vocabulary.
Listen to your teacher's instructions and start it right now!
Full transcript