Well, I really don't  have much knowledge of technology more than what we all use;  cell phones and notebooks.  I don't think that I have a "favorite" piece of techology, but I think that my smartphone are very useful. I really don't care about all the cool stuffs that the smartphones can do,  but it is useful  to comunicate with other people being connected to the world through social networks. That's why I like to use my cellphone.  My grandmother  gave it to me  one month ago because she thought that the one I had was very old-fashioned. So, it is a Nokia from the future, you can unlock it with your fingerprint. I use it every day and I like it because have a lot of space to save music.

Without my cell phone I would probably be late every morning at university, and if cellphones had never existed in the History probably the humans would communicate much better in other ways, such as telepathy or cards.