It's not the Boston Computer Museum...

But the Mountain View, California Computer History Muesm does seem to have a sterling talk commemorating the 40th anniversary of the IBM System/360 Mainframe. It's fully booked now - let's hope the video is available online.

For readers unfamiliar with the IBM System/360 mainframe system and it's genius, there is plenty of online information. The Wikipedia, as always, has a useful entry. For the more visual, you can see some really cool black and white photo's on this Columbia Uni page. A useful timeline can also be read here.