I agree with Chandler, I have been reading the novellas and remember the exact same thing.
Lil Komos, scientist in an Eden Hot Lab:
"It grows too fast, but Nguyen wasn't willing to wait. 'An atmosphere in our lifetime,' he said… attacks organics, protein units in boptronic computers, even the plastics in our environmental seals."
The microbe that escaped the Eden lab is apparently capable of consuming polymers, plastics and organic tissue but is not capable of eroding metallic or silicon-based components in the same manner. Computer systems (particularly those used to control various automated vehicles and the Savant Series of computers) are left partially intact as most technology in Outpost 2 is Boptronic. While the biological portion is completely destroyed by the blight, non-organics contained in these systems should remain functional, albeit crippled.
Just stuff from the OPU Wiki under 'Blight'.