I did a Google search and found out that there are several real companies that call themselves Cyberdyne Systems, among them an ISP in Eugene, Oregon, and several others that have no relationship with Terminators, fictional or otherwise. One of these companies has the web address http://cyberdyne.ca is in the prosaic business of selling computer parts and custom computer systems to the local folks in Niagara Falls on the Canadian side, but distinguishes itself by having a logo similar to the logo of the fictional Cyberdyne Systems made famous in Terminator 2.
I do suspect that the name of this mom and pop computer store was inspired by the movie. The website mentions that the store has been in business for over 10 years, which would put its founding date right around the time when Terminator 2 was released.