I really like this idea and it got me thinking about a lesser, but still bad, disaster:

If all computers were to disappear tomorrow (let's say a super-EMP, or something) how could we quickly restart the digital age? As in, what source code/chip designs would we really wish we had on paper somewhere, so a relatively small team could get modern computing going quickly?

From the source code side, I'm thinking the opcodes necessary for a Forth compiler, a compiler for some restricted version of C in Forth (to keep the source code size down), a quality C compiler written in the simple-C and the source code for some vaguely POSIX compliant system (MINIX, maybe?)

I'm curious if it's at all feasible to put that much source code on paper...