What is a Client?
A client is a computer hardware device or software that accesses a service made available by a server. The server is often (but not always) located on a separate physical computer.
What is a Server?
A server is a physical computer dedicated to run services to serve the needs of other computers. Depending on the service that is running, it could be a file server, database server, home media server, print server, or web server.
What is the difference between server and client?
Simply, client services request to the server where server services response to the client after server check data from data store.
Your web browser is an example of a web client .A client and server communicate using a special language (a protocol)is called HTTP.