The first Mac software was called System 1 and it was released on January 24, 1984, and there have been 30 major updates since. Apple rebranded to Mac OS with the release of mac OS 8 on July 26, 1997.

We can rarely see what people are up to when they think nobody is watching them. Yet, some professions have that luxury. Take high-rise window cleaners, for example: they can inadvertently snoop into ...