Fun. It's basically Borges Library of Babel[1] where each book is a 4K ROM!
If you do the math based on the specs given in the story (and crucially, you assume that each possible book appears once) you end up with a library several times larger than the observable universe.
https://libraryofbabel.info/ is inspired by that story and is a library of all combinations of 3,200 characters (well lowercase letters, space, comma and period)
There's also a later implementation at https://libraryofbabel.app/ which has a search space of 1.3M characters. Though this does make it less easy to share them, since at that scale, the reference locations become very much unwieldy.