When you request a page to be seen by you, Apache grants your request over HTTP and shows you the site. Apache is the server software that is responsible for serving web pages. “ W” stands for Windows, there’s also LAMP (for Linux) and MAMP (for Mac).
Let’s quickly go over what each letter represents: The only difference between these two is that WAMP is used for Windows, while LAMP – for Linux based operating systems. What’s good to know is that WAMP derives from LAMP (the L stands for Linux).
Even though you can install them separately, they are usually bundled up, and for a good reason too. It’s a software stack which means installing WAMP installs Apache, MySQL, and PHP on your operating system (Windows in the case of WAMP). WAMP is an acronym that stands for Windows, Apache, MySQL, and PHP.