Maintaining a clean. Desktop computer can clean easily because they can take pieces of equipment are easier Notebook. It can remove the parts out clean. Air or dust easily. As well as to make long lifetime than Notebook the Notebook clean hard, because cannot disassemble tool comes out clean. Only external. However, desktop computer or Notebook should be clean. If we don't take equipment to clean. It may be the hard heat collector. The parts are the most damage is possible.