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Web development refers to the building, creating, and maintaining of websites. It includes aspects such as web design, web publishing, web programming, and database management. It is the creation of an application that works over the internet i.e. websites.
Backend-Development: If Front-End Developers are responsible for how a digital product looks, Back-End Developers are focused on how it works. This means they’re responsible for overseeing what’s under the hood, including database interactions, user authentication, server, network and hosting configuration, and business logic. The primary responsibility of Back-End Developers is to ensure the functionality of the site, including its responsiveness and speed. To do that, Back-End Developers have to know how to build servers with modern frameworks (while developing custom APIs and serving static websites and files), and how to manage databases and data on a web server. Typically, they use server-side languages, including PHP, Ruby, and Python, as well as tools including MySQL, Oracle, and Git.