Hosting is the process of storing a website or application's data and files on a server that is connected to the internet. When a website or application is hosted, it becomes accessible to users via the internet. A hosting service provider is a company that provides the technology and services needed for a website or application to be viewed online.

There are different types of hosting services available, including shared hosting, virtual private servers (VPS), dedicated servers, and cloud hosting. Shared hosting involves sharing a server with other websites or applications, while VPS and dedicated servers provide more dedicated resources and control. Cloud hosting uses a network of servers to host websites or applications, providing scalability and flexibility.

Hosting service providers also typically offer other services, such as domain name registration, email hosting, and website builder tools. Hosting is an essential component of building and maintaining a website or application, and choosing the right hosting service can impact the performance, security, and reliability of the website or application.