1) How do you ensure the software or PROM was programmed correctly ?
Test it - they are all the same - you know. Seeing how you're a "computer scientist" and all.
2) How do you do that for every single voting machine ?
Since PROM's are encoded from a master, they are exact duplicates.
3) Exactly which model of voting machine has "no networking" and no USB and if so, how do you get the results out of the machine?
The famous Diebold machines democrats attacked - the results are transmitted to the inserted card - which each voter is given.
If Virginia actually put out machines using WiFi, their tech people should be fired.
Diebold machines are virtually impossible to hack.