Samuel Morse invented the telegraph, which used the Morse code.
The people understood it because each letter had a sound.
Facundo Cacace, 2nd B
Telegraph:
N: -.
J:.---
o:---
C:-.-.
BIG:-.../../--
Horse:.../---/..-/...
Wait:---/.-/../-
Quietly:.../.../---/...
Gerard Castañón, 2nd B

The 
mp3 player has got many features.
Some features are listening to music, listening TO the
radio and recording your voice.The mp3 can
connect on the computer, on TV and the video.
The new mp3 is mp4. In the mp4 you can 
watch TV and video, and has got
more memory.
Brian Caparrós, 2nd B
The mp3 player is a good  invention because you can do a lot of things with this. You can listen  to music, listen to the radio, record voice and watch videos. The mp3 is  good but now there are mp4 and mp5 and they are better than these. I  like things like these.  
Álex Garcia, 2nd C

The
 computer has got many features. You can surf on the Internet to  chat with your friends on the messenger or others.  You can play  games, listen to music, save photographies and videos too. On some  computers, you can do photos and video calls with the webcam. Today,  the computers are very important.
Sofia Campagna de León, 2nd C
The computer is big and there are two types laptops and personal  computer. In the computer you can search do Internet and buy, send  e-mails, look for your programme. I have got a laptop, its  black and is an HP. I play games and watch videos. It has got web cam,  screen and keyboard. There are many colours and many makes. I like  computers.

Bea Jiménez, 2nd B
In a computer you can download some programmes, and you can listen to  music, also you can write a text. If you have a film you can listen to  and watch it. Also you can surf in the Internet and play.
Mario Garcia, 2nd A

  In the computer you can listen to music, watch videos  from the you tube, search information in goggle, send e-mails and  communicating with a person by video.
Mònica Ferré, 2nd A

The computer is a very important invent. Computers have got a lot of things. Most computers have got Internet. They have got programmes, some games and you can download more of them. Some computers have got a web cam. Some people have got laptops. I like the laptops because if you want, you can carry them. I think that the Internet is the most important feature in computers.

Claudia Allmang, 2nd B
Today, most people have  got computer. With this you can surf in Internet, do work,play, ...The computer has got: keyboard, screen, mouse, speakers, webcam, ...

Noelia González, 2nd A
       
My 
digital camera is black. The make is  Sony. It has got 10.2 mega pixels. This camera can freeze the beautiful moments in my life. I can do photographies and videos with this  camera.
Alicia Carrasco, 2nd C
               
Andreas Pavel invented the Walkman
Andreas Pavel, born in 1945, is a German-Brazilian inventor  who is the father of the portable personal stereo cassette player,  better known as the Walk man.Born in Aachen, Germany, Pavel went to São Paulo when he  was 6 years old, brought by his father who went to work for the  Matarazzo industries.
It was in Brazil, in 1972, that he invented his  device, the stereobelt. He lived in a modern house in Morumbi, and was  acquainted to some important personalities of the time, as the  journalist Vladimir Herzog and the poet Augusto de Campos.The exact settlement fee is a closely guarded secret but  European press accounts said that Pavel received a cash settlement for  damages in excess of 10,000,000$ and is now also receiving royalties on  some Walkman sales.
Sofia Dellanave, 2nd B
Tom Cranston, Fred Longstaff and Kenyon Taylor invented the mouse (computing)

 
This people working on the Royal Canadian Navy’s DATAR project in 1952. Independently Douglas Engelbart invented the first mouse prototype in 1963 with Bill English. The invention of the mouse was just a small part of Engelbart’s much larger project. The first mouse used two gear-wheels perpendicular to each other. A mouse has already been developed and published by the German Company Telefunken. The Telefunken model had a ball, as it can be seen in most later models until today. Some models from the year 1972 are still well preserved.
 Mònica Ferré, 2nd A
John Logie Baird invented the 
television.

He was born 13th August 1888  and dead 14th June 1946. He was a Scottish engineer and inventor.
The television is the most widely used telecommunication medium for transmitting and receiving moving images.
Claudia Allmang, 2nd B