Computers, mobile phones, tablets and the range of computer equipment used in business are tools of great importance to businesses and individuals on a daily basis. However, once they reach the end of their life, these devices if not adequately supported can become real threats to the environment. Indeed, very often made up of highly polluting materials,these electronic devices do not spare the environment in any way. Lead, cadmium or mercury are dangerous elements that can be released into the environment through electronic devices. What is computer hardware recycling,and how important is it?