The case is wiped down with a cleaning agent. A soft brush may remove loose dirt the remainder is dislodged with compressed air and removed with a low-pressure vacuum. Internal components accumulate dust brought in by the airflow maintained by fans to keep the PC from overheating. If it is a mechanical mouse, the trackball is taken out, not only to clean the ball itself, but to scrape dirt from the runners that sense the ball's movement and can become jittery or stuck if impeded by grime. The bottom surface is also cleaned to ensure that it can slide freely.
The top surface of the mouse is wiped with a plastic cleanser to remove the dirt that accumulates from contact with the hand, as on the keyboard. Like a television screen, a computer screen can show still or moving pictures and It's a part of Output Devices. The portion of the monitor that displays the information is called the screen.
A monitor displays information in visual form, using text and graphics.
