The first time i saw an 8-inch disk, i thought it was some sort of wind-up. But no, there really were disks that big once; my dad had one from some ancient minicomputer he'd worked on at some point.
Low-level LSI-11 processor variant, 128k RAM, (2) 8" floppy drives. The case was 75% floppy drive, 25 % processor boards on top.
Came with RT-11 build floppies, I had to run the OS build in order to generate a boot disk and three language/utility disks. Took about 8 hours to do the full optioning and build from the 13 source floppies.
Ahh, the old days. Wrote my first D&D game, ballistic path analysis, mandelbrot drawn to 80x24 greenscreen VT01...