Cloud computing is a technology that allows users to access and utilize computing resources such as servers, storage, databases, networking, software, and more over the internet, typically on a pay-as-you-go basis. Instead of owning and maintaining physical hardware and infrastructure, users can leverage cloud services provided by third-party providers to store, process, and manage data and applications remotely. This model offers scalability, flexibility, cost-effectiveness, and accessibility, making it popular among businesses and individuals for various computing needs.