How Web Applications Work
A web application is usually accessible only through a web browser. However, it does have other characteristics, including that it has a front-end and a back-end. In between the front and the back is the application itself, although the front-end and the back-end are a part of the overall web application. Front-ends are client-side processes created in HTML, CSS, and JavaScript, all interpreted by a browser. Back-ends are in a programming language stack. The more commonly used programming stacks, which include the elements required for back-end processing components, are the following:
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WAMP (Windows, Apache, MySQL, and PHP)
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LAMP (Linux, Apache, MySQL, PHP/Perl/Python)
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MEAN (MongoDB, ExpressJS, AngularJS, NodeJS) ...
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