1. Is the mouse damaged?
Replace the other mouse and connect it to the same USB interface to confirm whether the new mouse still cannot be used. If not, it proves that the mouse itself is not the cause of the fault, and continue the following investigation.
2.USB interface is abnormal
Including USB interface power supply problems, poor contact, USB interface damage and so on. , need to check one by one, replace other USB interfaces, and confirm whether the original USB interface is abnormal.
3.USB interface is disabled in BIOS.
When the USB interface is disabled by the BIOS, the mouse and keyboard device is connected to the disabled interface, which can be used to boot into the BIOS, but it cannot be used under the system. At this time, just enter the BIOS, set the corresponding USB port to the enabled state, save and exit the BIOS.
4. The corresponding keyboard and mouse are disabled in the device manager.
After booting another set of mouse and keyboard to the system, open the device manager to confirm whether the original mouse and keyboard are disabled (down arrow). Right-click the device and select Enable.
principle of operation
Rolling ball mouse: a chip pulse signal sensor, which uses light-emitting diodes and phototransistors to drive rubber balls onto a grating wheel.
Optical mouse: light source pulse signal sensor using light-emitting semiconductor and photoelectric sensor.
Wireless mouse: DRF technology is used to convert the movement of the mouse on the X or Y axis and the pressing or lifting of keys into wireless signals and send them to the host.
Mouse is a commonly used computer input device, which can position the cursor on the current screen through buttons and wheel devices and operate the screen elements that the cursor passes through. The ancestor of the mouse appeared in 1968, and American scientist douglas engelbart made the first mouse in California.
The mouse can be divided into mechanical mouse and photoelectric mouse according to its working principle. The mechanical mouse is mainly composed of a rolling ball, a roller column and a grating signal sensor. When you drag the mouse, it drives the ball to rotate, and the ball drives the roller column to rotate. The grating signal sensor installed at the end of the cylinder column collects grating signals.
The photoelectric pulse signal generated by the sensor reflects the displacement change of the mouse in the vertical and horizontal directions, and then the movement of the cursor arrow on the screen is controlled through the processing and conversion of the computer program.