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.
In response, he developed a new character originally dubbed Mortimer Mouse before it was decided Mickey would be a better moniker. Mickey Mouse made his official debut in a 1928 short film titled âSteamboat Willie,â one of the first cartoons ever to use synchronized sound effects. The rodent quickly became a star, and soon there were Mickey Mouse Clubs for children as well as merchandise and a comic strip.