At present, there are two types of interface for the mouse: the PS/2 interface and the USB interface.But with the development of mouse technology, the PS/2 interface has less and more mouse products.The mouse with PS/2 interface can avoid the conflict between the interrupt request number (IRQ) and the interrupt address between the mouse and the sound card, NIC and other devices, resulting in the mouse can not work normally.But it is a pity that the mouse that plug in the PS/2 interface when the system runs, must be used normally after the new startup system, very inhumane. ps 2接口鼠标和usb接口鼠标