Ballot marking device

1. A device that permits contest options to be reviewed on an electronic interface, produces a human-readable paper ballot, and does not make any other lasting record of the voter’s selections.

Source: Election Terminology Glossary - Draft, National Institute of Standards and Technology (NIST),

2. A device that assists voters, through various accessible interfaces including audio guidance and tactile features, in marking a paper ballot. Ballot marking devices equipped with audio read-back of the voter’s choices from the printed or marked ballot enable visually impaired to verify that their marked ballots accurately reflect their votes.

Source: Counting Votes 2012: A State by State Look at Voting Technology Preparedness, Verified Voting Foundation, the Rutgers Law School Newark Constitutional Litigation Clinic, and Common Cause,