A server can be a physical host, but also a virtual resource. You have to spend time and money on maintenance and configuration.

With Serverless, this isn't necessary anymore. Of course, the data and the program code are still stored on a server, but this is done automatically. A cloud service provider takes over these tasks in form of a "black box" and the developer only has to upload his code. Administration and OS maintenance are no longer part of his job, leaving more time for other things. In this section you can keep yourself up to date on Serverless.