What is a mouse

The mouse is the computer display system vertical and horizontal coordinates positioning indicator, because of the shape of the mouse named "Mouse" (Hong Kong and Taiwan for the mice). "Mouse" standard salutation should be "mouse", English name "Mouse". The use of the mouse is to make the operation of the computer more convenient to replace the keyboard that cumbersome instructions.

Interface type

Mouse by interface type can be divided into serial mouse, PS/2 mouse, bus mouse, USB mouse (more for optical mouse) four kinds. Serial Mouse is connected with the computer through the serial port, there are 9-pin interface and 25-pin interface; PS/2 mouse through a six-pin miniature DIN interface connected with the computer, it is very similar to the interface with the keyboard, use attention to distinguish between the interface of the bus and the bus interface card; USB mouse through a USB interface, directly plugged into the computer's USB port.

Working principle

The mouse according to its working principle of different can be divided into mechanical mouse and optical mouse. The mechanical mouse is mainly composed of rolling ball, roller column and grating signal sensor. When you drag the mouse, drive the ball rotation, the ball and drive the roller rotation, mounted at the end of the roller grating signal sensor generated by the photoelectric pulse signal reflects the mouse in the vertical and horizontal direction of the displacement changes, and then through the computer program processing and conversion to control the screen cursor arrow movement. The photoelectric mouse is to detect the displacement of mouse, convert the displacement signal into electric pulse signal, and then control the movement of the mouse arrow on the screen by the process and transformation of the program. Photoelectric sensors instead of rolling balls. This type of sensor requires a specially designed pad with a striped or dotted pattern to work with.

1. Move the mouse to drive the ball.

2.X direction and y-square-pole transfer mouse movement.

3. Optical dial plate.

4. The transistor emits infrared rays to pass through the small hole of the dial.

5. Optical sensors receive infrared and convert to plane moving speed.

Kind of introduction

The mouse according to its working principle and the internal structure of different can be divided into mechanical, optical and photoelectric type.

Mechanical mouse

The mechanical mouse is mainly composed of rolling ball, roller column and grating signal sensor. When you drag the mouse, drive the ball rotation, the ball and drive the roller rotation, mounted at the end of the roller grating signal sensor generated by the photoelectric pulse signal reflects the mouse in the vertical and horizontal direction of the displacement changes, and then through the computer program processing and conversion to control the screen cursor arrow movement.

Light-Machine Mouse

As the name suggests, optical machine type mouse is a photoelectric and mechanical combination of the mouse. It is based on the mechanical mouse, will wear the most severe contact brush and decoding wheel to the non-contact led to the light path components. When the ball rolling, the X, y direction of the roller drive code circling. Mounted on both sides of the code plate have two sets of light-emitting diodes and photosensitive transistor, led emitted by the beam sometimes to the photosensitive transistor, sometimes blocked, resulting in a two-stage group phase difference of 90 ° pulse sequence. The number of pulses represents the amount of mouse displacement, while the phase represents the direction of the mouse movement. Because of the use of NON-CONTACT components, reduce the wear rate, thus greatly improving the life of the mouse and the accuracy of the mouse has increased. The appearance of the optical machine mouse is no different from the mechanical mouse, it is difficult to distinguish the shell without opening the mouse.

Optical Mouse

The photoelectric mouse is to detect the displacement of mouse, convert the displacement signal into electric pulse signal, and then control the movement of the cursor arrow on the screen by the process and transformation of the program. Photoelectric sensors instead of rolling balls. This type of sensor requires a specially designed pad with a striped or dotted pattern to work with.

Optical Mouse

Optical Mouse is an advanced mouse designed by Microsoft Company. It uses Ntellieye technology, in the small hole in the bottom of the mouse has a small photosensitive head, the face of the photosensitive head is a emitting infrared light-emitting tube, the light-emitting tube fired 1500 times per second, and then the photosensitive head will be the reflection of these 1500 times to the mouse positioning system, in order to achieve accurate positioning. So, this mouse can be moved indefinitely anywhere.