The most commonly used mouse interface type at present is the USB interface. USB is the abbreviation of "Univer Serial Bus" in English, and its Chinese meaning is "Universal Serial Bus"; its maximum data transfer rates are 12Mbps and 480Mbps, respectively. A high-speed universal interface.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
USB is the abbreviation of English Univer Serial Bus, and its Chinese meaning is "Universal Serial Bus". Common USB interfaces before 2013 can be divided into USB1.1 and USB2.0 according to their versions. Their maximum data transfer rates are 12Mbps and 480Mbps respectively. They are a high-speed universal interface. This is a new type of mouse interface. Before 2013, many new mouse products used USB interfaces. Compared with the first two interfaces, its advantage is a very high data transmission rate, which can fully meet the refresh rate requirements of various mice. and resolution requirements, enabling various mid- to high-end mice to fully exert their performance, and support hot swapping. And with the popularity of the BTX specification, this will be the only mouse interface in the future.
Extended information:
There are three mouse interface types: serial port, PS/2, and USB.
The serial port is the serial interface, that is, the COM interface. This is the oldest mouse interface, a 9-pin or 25-pin D-type interface, which can be used by connecting the mouse to the serial port of the computer host. Its advantage is that it has the widest range of applications and models. It can be used from ancient computers without PS/2 interfaces and USB interfaces to the latest computers. Its disadvantage is that the data transmission rate of serial communication is too low, and mid-to-high-end mice cannot play their high role. Performance advantages, and does not support hot swapping. The serial port has been canceled in the latest BTX motherboard specifications. With the popularity of the BTX specification, serial port mice have become very rare.
PS/2 interface is a mouse interface launched by IBM in 1987, commonly known as "small mouth". This is a dedicated interface for mouse and keyboard, a 6-pin circular interface. But the mouse only uses 4 pins to transmit data and power, and the remaining 2 pins are empty. The transmission rate of the PS/2 interface is slightly faster than that of the COM interface, and it is a standard interface for ATX motherboards. Although the PS/2 interface was once widely used, it does not support hot swapping, which cannot allow high-end mice to fully exert their performance. Now it is basically Replaced by USB interface. In the BTX motherboard specification, this is also an interface that will be eliminated soon.
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