When I was in the Navy we were using those 8" Giant Floppy Disks. In high school I wrote a basic version of Atari DOS. So many memories with the Atari 400, soon after I got the 800 and my last system was the 130XE which I bought from Electronics Boutique (EB Games..now Gamestop) when I was still in the Navy. I used to use a hole punch to notch my floppies then got one of those disk notchers also. So many Atari 8-Bit computers to create themes for which is why I came up with the Atari Home Computers theme.