The turn of the millenium was marked by an intense development at the computer science and technology in general. Nowadays, teenagers have easy access to almost any gadget. Therefore, teens need an efficient gadget that has multiple functions. So in this sense, a useful gadget for a teenager nowadays would be a cell phone with 3G technology.
A 21st century teenager needs not only to have access to communication but also have an easy, fast and economical access to this communication. Almost 80% of the teenagers that compose the middle class has cell phones, and it is widely recognized that mobile phones are really useful.
Besides communication, cells have a lot of other functions as well. Some are linked up to the internet, some are digital cameras and/or GPS, some execute mp3 files and/or movies, but crucially they provide teenagers an easy access to almost any kind of entertainment-related function.
This means that cell phones include a large amount of functions besides its most important one, communication. It would be hard for a teenager to carry on 10 different kinds of equipments. But then, fortunately, there’s a certain gadget that substitutes all these gadgets into 1, it’s a cell phone.