Apple had licensed the mouse for $40,000

Apple didn’t invent the mouse. It was built at SRI International by Douglas Engelbart and patented in 1970. Apple licensed it for about $40,000.

Also, Apple wasn’t the first company to attach a mouse to a computer. This had been done by Xerox on their 8010 Star personal computer, which unfortunately wasn’t a success probably because of its steep price, a staggering $16,000.

In addition to being the inventor of modern mouse, Douglas Engelbart is best remembered for giving a live demonstration of several computer technologies at the Fall Joint Computer Conference in San Francisco. This Mother of All Demos took place on 9^th December 1968 and showcased windows, hypertext, graphics, video conferencing, word processing and, of course, the mouse.
Mother of All Demos video on YouTube