If e-voting is currently being used, what type(s) of technology used?

Voters insert a ballot into a machine, and are asked to select their choices as displayed on a touchscreen. Upon confirming their selections, their vote is printed on the ballot which is then returned to the voter who must still proceed to place it in a ballotbox. The voting machines themselves do not calculate the votes, they simply act as an ‘instrument to facilitate the vote’ (source).