What is your favorite invention/discovery?

Hello friends, how are you?.Today I will talk about my favorite invention:
I think this topic is very difficult, because there are lots of invetions that are very important and that we can´t live without them, but I think my favorite invention is the computer. It is very important for us because with it we can do lots of things, we can search on the Nett things that we don´t know, but the most important thing for us is that we use it as our notebook. We learn with it, we use our tablet at school and we study with them, and they are great!. The technology in Chile is improving, and I think is very important that we are the first class at school who uses computer as notebooks.
And because of the improving, the computers are every day more important, today almost every familiy has a computer. Because of all this I think computers are my favorites inventions. I hope that you had a great time reading my opinion, see you soon!