Why am I using a mobile phone connected to the USB computer is not working

was not removable disk, mobile phones show only charge, sometimes it can under the first.This is what the problem is not my computer is not working.How could there be aware of the point-point .

data line with the computer once it does not matter to my family my friends that this song shows that MP3 is playing on the computer charge Do not open another line of data has become the broken line is estimated at a few