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The origin of the mouse

Mouse, an input device of a computer, is also an indicator of the vertical and horizontal coordinates of a computer display system. It is named after a mouse, and Hong Kong and Taiwan act as a mouse. The standard name should be the mouse, the English name Mouse, the use of the mouse is to make the operation of the computer easier and faster, instead of the cumbersome instructions of the keyboard.
The mouse was invented by Dr. Douglas Engelbart of the University of California at Berkeley in 1964, when Douglas Engelbart worked at the Stanford Institute, an institution sponsored by Stanford University, and Douglas Engelbart had long considered how to make computers The operation is much simpler, and what means is used to replace the cumbersome instructions input by the keyboard.
working principle
Rolling ball mouse: The rubber ball is transmitted to the grating wheel with the light-emitting diode and the photo transistor of the phototransistor.
Optical mouse: Infrared scattered light spot illuminating particles with light source semiconductor and photoelectric sensor light source pulse signal sensor.
Wireless mouse: Use DRF technology to convert the mouse’s movement on the X or Y axis, button press or lift information into a wireless signal and send it to the host.
The mouse is a very common computer input device that can position the cursor on the current screen and operate the screen elements of the position where the cursor passes by the button and scroll wheel device. The originator of the mouse appeared in 1968, and American scientist Douglas Engelbart made the first mouse in California.
The mouse is divided into a mechanical mouse and an optical mouse according to the working principle of the mouse. The mechanical mouse is mainly composed of a rolling ball, a roller column and a grating signal sensor. When you drag the mouse, the ball is rotated, the roller rotates the roller, and the grating signal sensor installed at the end of the roller collects the grating signal. The photoelectric pulse signal generated by the sensor reflects the displacement of the mouse in the vertical and horizontal directions, and then the movement of the cursor arrow on the screen is controlled by the processing and conversion of the computer program.

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