How technology is used in relation to paper voter lists?

NCSL, Electronic Poll Books, 25 October 2019, accessed 12 June 2020

"According to the 2018 Election Administration and Voting Survey, 36 states used e-poll books in at least one jurisdiction in the 2018 elections. In total, 26.2% of jurisdictions nationwide reported using e-poll books, representing a 48% increase in e-poll book usage since the 2016 election."