No vote.

Overvotes are when more than one candidate for an elected office has been selected on a ballot. Quite frankly, if someone is so dumb or ill-informed not to know specifically who they are voting for, it really is best that they decide not to vote for anyone at all in that particular race.

Undervotes are when no candidate for a specific office has been selected on a ballot. It could be an oversight, which the new technology will alert the voter to so that they can correct it, or it could be a conscious decision that the voter made not to cast a vote in that particular race.

There’s a whole lot of stupid yammering about how undervotes are some sorta indication that people have been disenfranchised. Denied the right to vote yadda, yadda, yadda.

We can only hope that one day someone will wise up enough to design a ballot so that for each race, the voter can clearly indicate that the decision they have made is not to.