LAMP: Stand for Apache, Mysql and PHP under Linux operating system.
WAMP: Stands for Windows Apache Mysql and PHP support windows.
XAMPP: Stands for cross platform Apache Mysql PHP and Pearl
Web Server: It is a software used to run we app. The main functionality of web server is to handle the request from the client and send the response to the client
Ex: IIS, Apache, Tomcat
Web Browser: It is a software used to open web app from web server
Ex: Mozilla, chrome
Client Side Script: The script which executes in client machine is called client side script.
Server Side Script: The script which executes in the web server is called server side script.
Ex: PHP, JSP, ASP, etc
Request: It is trip of web page from client to server.
Response: It is trip of web page from server to client.