What voting machines does San Mateo County use
Although San Mateo County uses a fully electronic voting machine (eSlate), it is not a touchscreen. Voters navigate the ballot by turning the dial on the eSlate.
A voter makes ballot choices by pressing the “enter” button. The eSlate gives the voter many different ways to correct or change a voting choice before the ballot is cast. The eSlate produces a printed paper record of all the choices made; this lets the voter verify that it is correct before they press the “Cast Ballot” button to make it official.