Programmatic refers to the automated process of buying and selling digital advertising space through the use of technology and algorithms. This method allows for precise targeting and real-time bidding, making it more efficient and cost-effective for advertisers. It also allows for data-driven decision making, ensuring that ads are delivered to the right audience at the right time. Programmatic advertising has revolutionized the way online ads are bought and sold, providing a streamlined and data-rich approach to reaching consumers.