What is .NET and what is it used for?

Introduction

.NET is a free development platform from Microsoft. It is designed for creating a variety of programs, including web applications, mobile apps, cloud solutions, games, and IoT software. The .NET platform supports multiple programming languages ​​and offers an ecosystem of tools for developing, testing, and deploying applications, including cross-platform ones. Microsoft’s programming language, known as C#, is the primary tool for working with the platform.

History of .NET development

The .NET Framework was first introduced by Microsoft in 2002. It is the foundation for building Windows applications, providing developers with ready-made libraries and tools. In 2016, .NET Core was released—a lighter, more modular version of .NET that supports cross-platform development.

The main difference between .NET Framework and .NET Core is that the Framework only works with Windows applications, including legacy ones. .NET Core offers broader functionality: it can handle cross-platform applications, manages memory more efficiently, starts up faster, and is better suited for high-load applications.

Microsoft currently supports four flavors of .NET:

• .NET 5 and later
• .NET Framework
• Mono
• UWP

Mono is a release for small programs, primarily used for mobile development through the dedicated Xamarin framework. UWP is the Universal Windows Platform, which is used to develop apps for a variety of devices, from touchscreen input to IoT applications.

The main components of the .NET platform

Regardless of which .NET release a developer uses, certain components are present in it.

Application runtime environment

.NET includes the Common Language Runtime (CLR), which is responsible for executing code, managing memory, handling exceptions, and performing other system tasks.

Class libraries

The class library provides developers with a set of standard functions, such as working with files, managing streams, interacting with databases, and processing XML and JSON.

Development tools

Popular tools such as Visual Studio and Visual Studio Code are used for developing .NET applications. They provide support for debugging, testing, and project management.

Application platform

Application development platforms such as ASP.NET and Windows Forms are added to the .NET version as needed.

.NET programming languages

.NET supports many programming languages, including:

• C# is the primary language for .NET development, known for its power and simplicity. It is often referred to as the .NET programming language.
• F# is a functional language suitable for data processing and scientific computing.
• Visual Basic is a language focused on simplicity and readability of code.

.NET Applications

Because .NET emphasizes cross-platform compatibility, it’s used to develop applications that can run on any operating system. Other features of .NET make it suitable for creating high-load, scalable applications. Let’s look at the platform’s main applications.

Web development

With .NET Core, developers can create scalable and performant web applications. It’s a popular solution for building websites, REST APIs, and web services. Here are a few web applications and services written in .NET:

• Stack Overflow is the largest forum for developers.
• Microsoft Teams is a tool for collaboration and communication. The 
• UPS Tracking System is a delivery tracking system.

Desktop application development

.NET supports the development of desktop applications for Windows using WPF (Windows Presentation Foundation) and Windows Forms. Some of these include:

• Visual Studio is an integrated development environment from Microsoft.
• Paint.NET is a popular image editor.
• Warehouse management systems and cash register systems.

Mobile development

Using the Xamarin framework (now integrated into .NET), developers can create native apps for iOS and Android using the same code. Examples:

• UPS Mobile is a delivery tracking app.
• Alaska Airlines is the airline’s mobile app.

Gaming solutions

The Unity gaming platform uses C# and supports .NET. Thousands of games have been created with this engine, including the mobile hit Pokémon Go and the underwater adventure game Subnautica. Here are a couple more games from this list:

• Terraria is a popular sandbox game built using C# and .NET.
• Hearthstone is a collectible card game from Blizzard that uses Unity.

Cloud software

.NET is ideal for developing cloud applications using Azure. The platform supports microservices, data processing, machine learning, and other cloud scenarios. These include:

• Azure DevOps is a project management and CI/CD platform.
• .NETflix – part of the server architecture is built on .NET.

IoT (Internet of Things)

Using .NET, you can create applications for managing IoT devices, opening up new possibilities for automation and analytics. Here are some examples of .NET applications for IoT:

• Intelligent building management systems.
• Industrial equipment monitoring systems.

Benefits of .NET

1. High performance. The .NET platform is optimized for low-latency execution, making it ideal for applications that require high performance.
2. Cross-platform. Support for multiple operating systems allows developers to work on any platform and develop applications for a variety of devices.
3. Security. Built-in security features such as data encryption, application protection from attacks, and access control make .NET a reliable choice.
4. A broad ecosystem. A large number of ready-made libraries and tools available via NuGet speed up the development process.
5. Community support. .NET has a huge developer community and numerous learning resources, making it easy to get started with the platform.

.NET is a versatile platform suitable for developing a wide range of applications. Thanks to its capabilities, security, and community support, .NET remains one of the most popular tools among developers. Learn how to work with .NET with our free courses.

Explore More IT Terms