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.
However, you may be able to extend the life of your Microsoft optical mouse if you open it and perform a thorough cleaning. Step 1. Disconnect the Microsoft optical mouse from the USB port on the computer. Remove the battery from the mouse if you have a wireless model.