Who invented the first mouse?

The mouse was invented by Dr. douglas engelbart of the University of California, Berkeley in 1964. At that time, douglas engelbart worked in the Stanford Research Institute (SRI) 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.