Defined term

PCOS (precinct Count Optical Scan)

PCOS (precinct Count Optical Scan): PCOS units are optical scan voting machines that are specifically designed and used for precinct-based vote tabulation.

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Election Administration

Definition

PCOS units are optical scan voting machines that are specifically designed and used for precinct-based vote tabulation. PCOS units are used in polling places in jurisdictions in 40 states.

Sources

1
America's Voting Machines at Risk
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