If you are talking about the little thing that goes into the USB port, then it is the thing to get internet connection. Some laptops don't need it. I am not sure what exactly it is called.
Well it depends on what you mean. On most android phones you could download this app that allows you to get net on your laptop, but getting net on your phone from the laptop, you probably cant do.i...
1. How is that a question? 2. It would be "My lap top doesn't charge when plugged in. 3. An example of a question would be "Why doesn't my lap top charge when it's plugged in? 4. Your charger has...