[ddingus]

Use some finer pitch graph paper and people could author "boot sector code" by literally coloring in the little squares with the necessary bits!

Would be sort of like paper tape.

[nxobject]

Pepperidge Farm remembers when high-school computing classes used Scantron-style optical mark cards...

https://commons.wikimedia.org/wiki/File:HP_Educational_Basic...

[ddingus]

Cool! My school used a variation of these for a while.

scantron... a name rising from the mists of time, lol