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Untitled Prezi

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Veronica D.P.

on 11 March 2013

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Scientific and technological advances 15 century 18 century 19 century 20 century 3 We should be very careful on the
Internet because it can be very
dangerous Did you now that...? The letters ICT mean Information and Communications Technology The internet The internet is a computer network that lets people all over the world communicate with each other. We use the computers to manipulate and share information very quickly and easily. Email An email server lets you send and receive
email messages from any computer with
acess to the internet. Chat In a chat, many people can
communicate instantly with
each other. They use a keyboard.
To enter a chat room, you need to use a nick and a password. We should know... Science and technology Advances in every life -James Watt invented the steam
engine -Samuel Morse invented the telegraph
-The Lumiere Brothers invented the movie projector -Alexander Fleming dicovered the
-Martin Cooper invented the movile phone -Johannes Gutenberg invented the
printing press at home: water and gas pipes
power lines
heating and air conditioning systems In transport: modern cars and buses
global positioning system (GPS)
plains and high-speed trains In medicine: modern devices
doctors can use the organs, blood and
other things that people donate
genetic tests Did you realise? [name]@[server].[domain] This is how it works: The sender is the person who sends the message. The message (email) goes to the recipient´s inbox. The recipient is the person who receives the message. To use the Internet, we need: A modem
A telephone line or a wireless (WIFI) connection
An Internet server On the Internet, you can: Use search engines to find interesting websites
Read online magazines, newspapers and blogs
Create your own blog about a topic that you like
Exchange messages or have video calls with friends Google Computers A computer needs two different elements: The physical components of a computer are called hardware.
The programs that make a computer work are called software. Computers need two types os hardware to work: A central processing unit (CPU).
Various peripheral devices for input, storage and output. The peripheral equipment for a computer: A hard disc is an internal storage device that lets us save programs.
A modem lets us connect a computer to the Internet.
A webcam is a digital video camera.
A printer lets us print copies of images and texts on paper.
Speakers lets us hear sounds and play audio material.
A keyboard lets us type in texts and control de computer.
A mouse lets us move the cursor and click on texts or images.
A monitor is a screen where we see images and texts.
External storage devices let us carry information around with us. Computers The Internet lets us do many different things. We can find lots of interesting information. We can listen to music, watch videos and play interactive games too. We can also communicate with people around the world. However, we must be careful when we use the Internet and follow some important rules:
Don´t believe everything we see on the Internet.
Use an up-to-date antivirus program.
Don´t spend too much time on the Internet.
Don´t send personal information or photos to people on the Internet. study
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