In theory...the CHM is only concerned with computers that are at least 10 years old. I am given to understand that there is some "rethinking" about that, especially with the advent of the Pi.
FYI....If you really want to have fun at the CHM, go watch them demo their Babbage Engine.
(Side note...the CHM is where the monthly Silicon Valley Pi Jam is held. Third Saturday of each month from 1:30 to 4:30.)