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.
Douglas Engelbart in 1984, showing the first mouse and a new one (Courtesy The Bootstrap Institute) The Mouse of Douglas Engelbart The first computer mouse was conceived of in the early 1960âs by Douglas Engelbart (see biography of Douglas Engelbart), then a Director of Augmentation Research Center (ARC) at Stanford Research Institute (SRI), in Menlo Park, California.