Disable video, music, file lenses in Ubuntu 12.04 Linux

Your Ubuntu computer connects without your knowledge to some unknown servers. These servers are intended to enable the unity lens applications like music, video, music-store. To get rid of some of these services, you should remove unwanted lenses, using the below commands in a terminal window:

$ sudo apt-get purge unity-lens-music unity-lens-video unity-lens-files unity-lens-musicstore <enter>

Removing the lenses will result in a slightly faster system.