Electronic Voting Machines (EVMs) HOW WORKS India National Elections 2024

Electronic Voting Machines (EVMs) are used in some countries to record votes in elections.expand_more Here’s a breakdown of how they work technologically: Electronic Voting Machines


  • Control Unit: This unit is kept with the presiding officer and manages the voting process.expand_more It has a button to activate the balloting unit and a screen to display the total votes cast.expand_more
  • ** Balloting Unit:** This unit is located in the voting booth where voters cast their ballots.expand_more It displays candidate names/symbols with buttons next to them.expand_more


  1. Voter Verification: The polling officer verifies the voter’s identity.expand_more
  2. Activating the Ballot: The officer activates the balloting unit, allowing the voter to cast their vote.expand_more
  3. Casting the Vote: The voter presses the button for their chosen candidate.expand_more
  4. Confirmation Beep: The control unit beeps to confirm the vote.expand_more
Electronic Voting Machines

Security Features:

  • Stand-alone System: EVMs are not connected to any network, wired or wireless, reducing hacking risks.expand_more
  • Write-once, Read-many Memory (WORM): They use WORM memory, ensuring data can only be added, not tampered with.
  • Tamper Seals: EVMs have tamper seals that alert officials if the machine is compromised.expand_more

Additional Notes:

  • Battery Operated: EVMs function on batteries, eliminating dependence on external power sources.expand_more
  • VVPAT: In some places, a VVPAT (Voter Verifiable Paper Audit Trail) machine is used alongside EVMs.expand_more It generates a paper slip showing the candidate selected, briefly visible to the voter for verification.expand_more

It’s important to note that EVMs have been subject to debate regarding their vulnerability to tampering.expand_more While security measures are in place, the technology is constantly evolving. exclamation

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