If you ever wanted to get your (virtual) hands on a PDP 11, now you can, by going here: Javascript PDP 11/70 Emulator.
They seem terribly small and limited now, but when I started in IT they were a real workhorse computer and for a time they threatened IBM’s dominance in the IT space. (Then the PC and DOS and Windows came along and did even more to challenge IBM.)
(Image from here.)
Smart People I Know 