How technology is used in relation to paper voter lists?

Election Guidelines

8. Voters’ schedules are marked - manuallyor electronically – providing that the voter has cast his vote, and any otherway to proof that he cast his vote approved by the President of the SupremeCommittee mentioned in Article (18) of the Law of Exercising the PoliticalRights.

Source: http://www.vote.bh/en/Media/Documents/GUIDE_EN.pdf