Mouse _ Interface Type
Interface type refers to the interface mode or type between mouse and computer host. At present, there are three common mouse interfaces: serial port, PS/2 and USB.
serial port
A serial port is a serial interface, which is also a COM interface. This is the oldest mouse interface, 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 can be used in the widest range of applications and models, from the old computers without PS/2 interface and USB interface to the latest computers, but its disadvantage is that the data transmission rate of serial communication is too low, and the middle and high-end mice can not give full play to their high performance advantages and do not support hot plug. In the latest BTX motherboard specification, the serial port has been cancelled. With the popularization of BTX specification, serial mouse will be gradually eliminated.
PS/2 interface
PS/2 interface is the most common mouse interface at present, which was originally patented by IBM, commonly known as "small mouth". This is a special interface for mouse and keyboard, which is a 6-pin circular interface. But the mouse only uses four pins to transmit data and power, and the other two pins are empty. The transmission rate of PS/2 interface is slightly faster than that of COM interface, and it is the standard interface of ATX motherboard. It is one of the most widely used mouse interfaces at present, but it still can't give full play to the performance of high-end mice, and it doesn't support hot plug. In the BTX motherboard specification, this is also the interface that will be eliminated soon.
It should be noted that when connecting a mouse with a PS/2 interface, you can't insert the PS/2 interface of the keyboard by mistake (of course, you can't insert the PS/2 keyboard into the PS/2 interface of the mouse by mistake). Generally speaking, the mouse interface is green and the keyboard interface is purple for motherboards that meet the PC99 specification. In addition, judging from the relative position of PS/2 interface, the keyboard interface is close to the motherboard PCB, and the mouse interface is above it.
Usb interface
USB is the abbreviation of English UniversalSerialBus, which means "Universal Serial Bus" in Chinese. At present, the common USB interfaces can be divided into USB 1. 1 and USB2.0 according to their versions, and their maximum data transfer rates are 12Mbps and 480Mbps, respectively, which is a high-speed universal interface. This is a new mouse interface. At present, many new mouse products adopt USB interface. Compared with the first two interfaces, it has the advantage of very high data transmission rate, which can completely meet the requirements of various mice in refresh rate and resolution, and can make all kinds of middle and high-end mice give full play to their performance and support hot plug. And with the popularization of BTX specification, this will be the only mouse interface in the future.
Various mouse interfaces can also be converted through specific adapters or patch cords, such as USB to PS/2 adapters and so on.
interface type
Interface type refers to the interface mode or type between mouse and computer host. At present, there are three common mouse interfaces: serial port, PS/2 and USB.
serial port
A serial port is a serial interface, which is also a COM interface. This is the oldest mouse interface, 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 can be used in the widest range of applications and models, from the old computers without PS/2 interface and USB interface to the latest computers, but its disadvantage is that the data transmission rate of serial communication is too low, and the middle and high-end mice can not give full play to their high performance advantages and do not support hot plug. In the latest BTX motherboard specification, the serial port has been cancelled. With the popularization of BTX specification, serial mouse will be gradually eliminated.
PS/2 interface
PS/2 interface is the most common mouse interface at present, which was originally patented by IBM, commonly known as "small mouth". This is a special interface for mouse and keyboard, which is a 6-pin circular interface. But the mouse only uses four pins to transmit data and power, and the other two pins are empty. The transmission rate of PS/2 interface is slightly faster than that of COM interface, and it is the standard interface of ATX motherboard. It is one of the most widely used mouse interfaces at present, but it still can't give full play to the performance of high-end mice and doesn't support hot plug. In the BTX motherboard specification, this is also the interface that will be eliminated soon.
It should be noted that when connecting a mouse with a PS/2 interface, you can't insert the PS/2 interface of the keyboard by mistake (of course, you can't insert the PS/2 keyboard into the PS/2 interface of the mouse by mistake). Generally speaking, the mouse interface is green and the keyboard interface is purple for motherboards that meet the PC99 specification. In addition, judging from the relative position of PS/2 interface, the keyboard interface is close to the motherboard PCB, and the mouse interface is above it.
Usb interface
USB is the abbreviation of English UniversalSerialBus, which means "Universal Serial Bus" in Chinese. At present, the common USB interfaces can be divided into USB 1. 1 and USB2.0 according to their versions, and their maximum data transfer rates are 12Mbps and 480Mbps, respectively, which is a high-speed universal interface. This is a new mouse interface. At present, many new mouse products adopt USB interface. Compared with the first two interfaces, it has the advantage of very high data transmission rate, which can completely meet the requirements of various mice in refresh rate and resolution, and can make all kinds of middle and high-end mice give full play to their performance and support hot plug. And with the popularization of BTX specification, this will be the only mouse interface in the future.
Various mouse interfaces can also be converted through specific adapters or patch cords, such as USB to PS/2 adapters and so on.
The round socket with keyboard and mouse inserted in the back of the computer case is called PS/2 interface.
Chinese name
PS/2 interface
Main applications
Used to connect the computer keyboard and mouse.
Communication type
Bidirectional synchronous serial communication protocol
Equipment use
Which is used for generating synchronous clock signals and reading and writing data.
Valid pin
Clock pin, data pin, power pin and power ground.
Connector type
5-pin connector, mini DIN connector
Heat exchange
not support
What is the interface between the mouse and the keyboard behind the computer?
Mouse and keyboard interface behind the computer, scientific name:
PS2
(Pierce Rabbit) Serial port,
The price should be very cheap
No more than zd in one mouth.
10 yuan, two are.
20 yuan, but want to.
Welding or something, call the computer company.
If it's fixed.
Say less.
Around 30 yuan.
If you don't pay attention to beauty, you can go to the computer market.
Buy one
USB to PS2
Adapter of
Computer-oriented
Universal serial bus
When the interface is plugged in,
At the other end, there is
Two interfaces
PS2 serial ports (one for mouse and one for keyboard). You can use that special one. I bought one last week and spent 10 yuan! belong to
because
My notebook doesn't have a round PS2 interface, so it hurts to play games with the notebook keyboard, so I bought a USB to PS2.
Adapter cable, put the desktop computer
Insert the keyboard into the notebook! All right!
What is the interface of the mouse and keyboard?
At present, there are two mainstream keyboard and mouse interfaces: USB and PS/2.
It is unlikely that the landlord doesn't know the USB interface, so you should ask the question of PS/2 interface, as shown below.
In which hole is the computer mouse inserted?
Now the interface of computer mouse is USB interface.
USB means "universal serial bus" in Chinese. At present, the common USB interfaces can be divided into USB 1. 1 and USB2.0 according to their versions, and their maximum data transfer rates are 12Mbps and 480Mbps, respectively, which is a high-speed universal interface.
This is a new mouse interface. At present, many new mouse products adopt USB interface. Compared with the first two interfaces, it has the advantage of very high data transmission rate, which can completely meet the requirements of various mice in refresh rate and resolution, and can make all kinds of middle and high-end mice give full play to their performance and support hot plug. And with the popularization of BTX specification, this will be the only mouse interface in the future.
Various mouse interfaces can also be converted through specific adapters or patch cords, such as USB to PS/2 adapters and so on.
Extended data
The original interface of computer mouse: PS/2 interface.
PS/2 interface is the most common mouse interface at present, which was originally patented by IBM, commonly known as "small mouth". This is a special interface for mouse and keyboard, which is a 6-pin circular interface. But the mouse only uses four pins to transmit data and power, and the other two pins are empty.
The transmission rate of PS/2 interface is slightly faster than that of COM interface, and it is the standard interface of ATX motherboard. It is one of the most widely used mouse interfaces at present, but it still can't give full play to the performance of high-end mice, and it doesn't support hot plug. In the BTX motherboard specification, this is also the interface that will be eliminated soon.
It should be noted that when connecting a mouse with a PS/2 interface, you can't insert the PS/2 interface of the keyboard by mistake (of course, you can't insert the PS/2 keyboard into the PS/2 interface of the mouse by mistake).
What is the name of the socket where the mouse and keyboard are plugged into the host?
There are two interfaces when the mouse and keyboard are plugged into the computer, one is called PS/2 interface (round port) and the other is called USB interface (flat port).
Generally, the older mouse and keyboard use a round mouth, while the newer mouse and keyboard use a flat mouth in recent years.
USB interface:
UniversalSerialBus (abbreviation: USB) is a serial bus standard for connecting computer systems with external devices, and it is also a technical specification for input and output interfaces. Widely used in personal computers, mobile devices and other information and communication products, and extended to photographic equipment, digital television (set-top box), game consoles and other related fields. The latest generation is USB3. 1, the transmission speed is 10Gbit/s, the three-stage voltage is 5V/ 12V/20V, and the maximum power supply is 100W. The new TypeC plug-in is no longer positive or negative.
PS/2 interface:
PS/2 was used in mouse, keyboard and other devices earlier. Generally speaking, the mouse of PS/2 interface is green and the keyboard is purple. PS/2 originally meant "Personal 2" and "Personal System 2" was a personal computer introduced by IBM in 1980s. The PC standard that was completely open before made IBM feel that its interests were damaged. So IBM designed PS/2 computer, with the purpose of redefining PC standard instead of adopting open standard. On this computer, IBM uses a new MCA bus and a new OS/2 operating system. The keyboard and mouse interface used by PS/2 computer is the current PS/2 interface. PS/2 computers failed in the market because the standards were not open. Until today, only PS/2 interface has been used.