I've got a couple of C64's and a VIC20 with cassette drives, and a 300 baud modem. A few 10/20MB hard cards. I've got some 8 inch floppy disks from Mainframe controllers, and piles of punch cards. I know I have a copy of DOS 2.0 and I believe I have a copy of 1.x somewhere. Windows 1.0/2.0/3.x. But I'm pretty new to computers compared to people I have worked with who have been in it for *much* longer. They talk about how they used to program mainframes by patching wires.