Explanation:Teflon is a florinated polymer it is polytetrafluroethylene (PTFE). It is widely used in different fields and the making of materials for both home and industrial use. Teflon rings does requires special tools for proper installation which is called TEFLON RING INSTALLER.
Warming the a Teflon ring in water or oil at 130-140°F for about 5 minutes will help to soften the material for easier installation. cover wear ring grooves with plastic tape.
The difference is that system on a desk top preforms all the basic tasks like file management, memory management handling input and output and controlling peripheral devices such ad disk and printers where as some smart phone work on specific hardware