.NET Core is an open-source, cross-platform framework for building modern, cloud-based, and modular applications. It's designed to address the limitations of the traditional .NET framework by providing a lightweight, high-performance platform that can run on Windows, macOS, and Linux. One of the key aspects of .NET Core is its modularity, where you only include the libraries that your application needs, making it more efficient and lightweight. This modularity also enables compatibility with microservices architecture and containerization technologies, like Docker. Here's a simple code snippet in C# to illustrate creating a web application using .NET Core: using Microsoft.AspNetCore; using Microsoft.AspNetCore.Hosting; public class Program { public static void Main(string[] args) { CreateWebHostBuilder(args).Build().Run(); } public static IWebHostBuilder CreateWebHostBuilder(string[] args) => WebHost.CreateDefaultBuilder(args) .UseStartup (); } This code sets up a basic web server using ASP.NET Core, showcasing the simple and concise nature of .NET Core development. Real-world applications of .NET Core can span from web applications, RESTful services, IoT applications to gaming and machine learning platforms. This flexibility demonstrates the adaptability of .NET Core to a wide range of scenarios. I hope this gives you a comprehensive understanding of what .NET Core is within the .NET technology realm. If you have any further queries about .NET Core or related topics, feel free to ask!