Microservice Architecture

The back end consists of a server that receives user queries and a database from which the appropriate results are retrieved.

Microservices

However, most modern websites don’t rely on this style of web hosting, i.e., the code of all of the functionalities of the entire website does not exist on one server. Instead, websites are hosted on virtual machines (just think of them as computers within computers). Virtual machines can allow us to have several ‘machines’ on one server, each with different operating systems. So, the website is hosted on a server within a server, and that server delegates tasks to other servers.