Food ordering systems are platforms that allow customers to select and purchase meals from restaurants or food providers. These systems can be accessed through websites or mobile applications, making it convenient for users to browse menus, customize their orders, and pay online. Many food ordering systems also offer features like delivery tracking and customer reviews, enhancing the overall experience. Popular examples include Uber Eats, DoorDash, and Grubhub, which connect consumers with local eateries and streamline the ordering process for both customers and restaurants.