40 years ago, the world saw the first computer mouse. A wooden box with a red button on the top cover - this is how the first mouse looked.

The man who invented the mouse, 83-year-old American Douglas Engelbart did not get a penny for it. His patent expired before the world began to use the mouse.
The first computer that included a mouse was the Xerox 8010 Star Information System minicomputer introduced in 1981. The Xerox mouse had three buttons and cost $ 400.
In 1983, Apple released its own single-button mouse model for the Lisa computer, the cost of which was reduced to $ 25. The mouse gained wide popularity due to its use in Apple Macintosh computers and later in Windows OS for IBM PC.
"Mouse" has passed a difficult and thorny path, we wish it continued success.
UPD. Interested in the history of comp.mysh found a
link to the first demonstration of the "mouse." and the exact date is
December 9, 1968 , so the Jubilee is ahead! - Getting ready!