As I was assembling a few computers this evening, I came upon the idea of Kosher Komputers.
Many CPUs (the part that does the real computing) now have at least two processors on them. One for the boys, one for the girls. Memory is also divisible (ganged vs. unganged), and half the memory could be used for each. Thus, you’d have a mechitza running down the middle of the computer.
I have a few more problems to solve before this becomes a practical idea.