EVMs, or Electronic Voting Machines, are devices used to cast and count votes in elections. They replace traditional paper ballots, making the voting process faster and more efficient. EVMs can be programmed to ensure security and accuracy, helping to reduce the chances of human error or tampering. These machines typically consist of a control unit and a ballot unit. Voters select their preferred candidates on the ballot unit, while the control unit manages the overall voting process. EVMs are used in various countries to streamline elections and enhance the integrity of the voting system.