server-side ,lient-side

Occurring on the server side of a client-server system. 

For example, on the World Wide Web, CGI scripts are server-side applications because they run on the Web server. 

In contrast, JavaScript scripts are client-side because they are executed by your browser (the client). 

Java applets can be either server-side or client-side depending on which computer (the server or the client) executes them.