Backend meaning and everything you need to know about it

Backend meaning and everything you need to know about it
backend vs frontend

Whenever a computer program is developed, whether it is a website, a computer application, or a mobile application, there are two main parts.

One is the part that the users can see and interact with. It is the front end of the program.

The other part that the users cannot see or interact with and holds all the functionalities is called the backend of the program.

We can also distinguish them as a data access layer for the back end while the front end’s presentation layer.

So, the backend covers the following aspects of a program.

  • The hardware resources.
  • The software technology
  • The network infrastructure

All of these works together to provide the functionality to the program. In any computer program, the users interact with the program using the front end or the interface. While the developers work on the back-end functionalities just like a mechanic works on a car engine.

The difference between Server-Side and Client-Side

When we talk about the backend of a computer program, there are two different types of it.


The client-side of a computer program refers to the functionalities and activities occurring on the end user’s device. It could be any computer device that supports that program.


An elementary example is of using the website. While you are accessing the website, you are on the client-side of the program. It is because you are accessing the interface of the system. However, for the functionalities and data access features, your system will refer to the server.


This type of program server-side refers to the functions that are running on the server like the data accessing, database management, notifications, authentication, server application functions, and all other functions. We can say that all the features that are accessed by the client-side, they are running here.

The Backend Architecture Overview

When we talk about the backend of any computer program, its type depends on the type of the project and its requirements.

These requirements are studied, and then the backend architecture is selected so that it will be appropriate for the program and fulfill all the requirements.

There are 3 main classes of server architecture. The three classes or server architecture are:

  • Serverless Backend
  • Server-oriented Backend
  • Decentralized Backend

Here are the details about each of them.

Serverless Backend

It is one of the most popular server architectures these days. It is because the server management and maintenance are under some third-party service provider. These providers are also responsible for the backup and security of the system.

As the service provider manages the server, there is no need for server management in the program. It makes it a magnificent architecture for the developers. The speed of development being the main reason here.

This architecture also provides very hassle-free development and deployment because all developers have to deal with the application’s front end. According to the experts, this is a more secure option because the service providers have teams of developers working day and night on making their system secure.

However, being a cloud-based technology, the chances of attacks are also high. So, it is a great option to take protective measures.

Server-Oriented Backend

It is the type of architecture where special server computers are implemented that serves as the server for the system and provide the hosting services. It is also one of the most popular architectures.

The best part about using this architecture is that you can use a physical or cloud-based server according to your requirements. Some other benefits are listed below.

  • Data sharing
  • Integrations
  • Single access point

Decentralized Backend

In this type of server architecture, nobody takes the responsibility of backend management. Different physical servers are located in different physical locations, and there is no central location of the main server.

The networks made on this type of architecture are usually open-source, and they provide peer-to-peer networking. The best part about using this architecture is that developers can use any type of language to develop the front end. However, the front-end hosting is needed to be done by other apps like IPFS or Swarm.

This architecture is applied in many practical applications. Some of them are Bitcoin and Ethereum.


Here we discussed all the backends and the client and server sides of the backend. Backend is a necessary part of every program that has a lot of functionality. It provides a program similar to that of an engine to a car.

In the example of a website, while the front end is used for int user interactions, the backend is used for managing all the functionalities like data transfer.

We can say that the backend is a necessary part of a program because it is responsible for any system’s proper functioning. Even the front end depends on the backend for most of its functions. However, the best is when these two work together to provide a good interface and functionality.


What the meaning of a backend?

Backend is the part of a software that the users cannot see or interact with and holds all the functionalities.

What is a frontend?

Frontend is the part that the users can see and interact with.

What are the backend categories?

– Serverless
– Server-Based
– Decentralized

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