The mouse was invented by Dr. douglas engelbart of the University of California, Berkeley in 1964. At that time, douglas engelbart worked at the Stanford Research Institute, an institution sponsored by Stanford University.
Douglas Engelbart has long been thinking about how to make the operation of the computer easier, and what means to replace the tedious instructions entered by the keyboard. When applying for a patent, his name was the X-Y position indicator of the display system.
How the mouse works:
The mouse can be divided into mechanical mouse and photoelectric mouse according to its working principle. The mechanical mouse is mainly composed of a rolling ball, a roller column and a grating signal sensor. Drag the mouse to drive the rolling ball to rotate, and the rolling ball drives the roller column to rotate.
The grating signal sensor installed at the end of the cylinder column collects grating signals. The photoelectric pulse signal generated by the sensor reflects the displacement change of the mouse in the vertical and horizontal directions, and then the movement of the cursor arrow on the screen is controlled through the processing and conversion of the computer program.