Backend: what it is, how it works, what it's for, and differences with frontend

Have you heard about 'backend' but don't know what it consists of? In this article, we explain the backend in depth: what it is, how it works, what it's for, its applications, and the key differences with the frontend.

What is backend?

Backend is the invisible part of a mobile application or website — what you don't see. If we think of a physical store, the backend is the warehouse, where products are managed, inventory is conducted, and everything runs smoothly.

Backend developer, what is it?

A backend developer is the expert in backend who is responsible for creating and maintaining this infrastructure, ensuring that everything is in place and works efficiently. They are the brains behind the operation, guaranteeing that everything is in order and data is handled securely.

Elements of the backend

Server

The server is like the brain of the backend. It is where all information is stored and processed. When a user makes a request, the server responds by providing the correct information.

Database

The database is like the backend's warehouse. Here all the necessary information for the application or website to work is stored. From usernames to transaction records, everything is saved and organised in the database.

Backend programming languages

Backend programming languages are the tools developers use to build and maintain the behind-the-scenes infrastructure. Some of the most popular languages include Python, Java, Ruby, PHP, and Node.js.

How does the backend work?

When you interact with an application or website, your actions trigger a series of processes in the backend. For example, when you log into a social network, the backend verifies your identity, searches for your profile in the database, and shows you your personalised content.

Differences between backend and frontend

While the backend handles the logic and functionality behind the scenes, the frontend focuses on what the user sees and experiences directly. The frontend is built with HTML, CSS, and JavaScript, while the backend uses languages like Python, Java, or PHP.

In summary, the backend is like the invisible engine that powers the applications and websites we use daily. At Digizone Labs, we are at your disposal to take your project to the next level. Contact us!