I was at a conference a couple of years ago, the discussions centred around the future of the archives of the past and present, and their accessiblity.
The earliest attempts at computerisation were now totally unreadable by the vast majority of computers. It wasn't just the storage medium either, it's the entire language and the formats too.
Code cracking has nothing on some of the lengths the archivists had to go to in their attempts to 're-access' critical documentation.
Maybe the commonplace programs are pretty pictures for idiots, but the sheer scale of their use makes them universally understood.
cheers,
Toddy