Series 66. What is the 'Series 66'. Series 66 is an exam administered by the Financial Industry Regulatory Authority (FINRA). Successful completion of the Series 66 exam is equivalent to successful completion of both the Series 63 and Series 65 exams.
The earliest optical mouse came out in 1980. One of the earliest prototypes was invented by Steve Kirsch at MIT. Another optical pointing device was invented by Richard Lyon. These early devices would play a role in changing the history of the computer mouse.
Doug Engelbart invented the computer mouse in the early 1960s in his research lab at Stanford Research Institute (now SRI International). The first prototype was built in 1964, the patent application for this X-Y position indicator for a display system was filed in 1967, and US Patent 3,541,541 was awarded in 1970.n the Web 8a. 1  MouseSite-the definitive website on the Mouse hosted by Stanford University, especially their Photos of the First Mouse page. 2  They also curate video of the 1968 demo and other significant archives from Doug Engelbart's work.