Abstract: An electronic voting system includes an optical-disk cartridge adapted to store election data and ballots therein, a plurality of precinct computing units corresponding to geographical precincts in an election, and a headquarter computing unit remote from the precinct computing unit and corresponding to a geographical county in an election. The precinct and headquarter computing units include optical disk drives for receiving and accessing the optical-disk cartridge. The precinct computing unit is connected to a display for transmitting the election data to the voters and for receiving the ballots cast by the voters. The optical-disk cartridge is transportable between the precinct computing unit and the headquarter computing unit to communicate the election data and ballots therebetween.