If want to vote in March during the presidential primary election, you must register by Monday.

This deadline represents the last chance voters have to be the first to test Fulton County's new election system —following the largest rollout of elections equipment in U.S. history.

The state awarded Dominion Voting Systems$104 million contract this summer to provide more than 75,000 new computers and printers to 2,600 precincts. The 18-year-old electronic machines in Fulton lacked a paper ballot and are being replaced with a patchwork of touchscreens, printed ballots and scanners.

MORE | Fulton County's mock election tests new voting system

The county said its mock election to test the election system earlier this week drew 700 people and went well.

Those who want to register (or check to see if they're registered) can do so online.

Those looking for more information about registered to vote in Fulton can look online at https://www.fultoncountyga.gov/services/voting-and-elections/voter-registration.

Two of the new Fulton County voting machines sit at the Sandy Springs Library on Tuesday Feb. 18, 2020. The new machines print the voter's selections on a paper ballot which is then scanned and the vote is cast.

Credit: Miguel Martinez for The Atlanta

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Credit: Miguel Martinez for The Atlanta

How does the new system work?

• Elections workers install voting machines into a mobile metal cabinet and deliver them to Fulton County’s 198 precincts, turnkey ready for Election Day.

• Voters walk up to the six-foot cabinet, cast their votes on a touchscreen, then get a printout showing their selections and an encoded pattern of dots and squares that a computer uses to record votes. That paper is scanned and kept for 30 days at the warehouse and then for two years at the Fulton Superior Courthouse.

• Once the polls close, two people take the flash drive from the scanner with all the precinct’s results to one of the county’s five check-in locations.

• Elections staff there will lock the flash drive in a bag that a police officer and an elections worker drive to the warehouse, which holds the only key that can unlock the bag.

• County staff tabulate the vote.

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Georgia has 33,000 new voting machines that will be used for the first time in next month's primary.