Asp.Net is an open-source.Net framework developed by Microsoft. It is mainly designed to build robust, data-driven websites, real-time applications. It uses languages like C#, VB and tool Visual Studio for programming. The main concepts of app.net include Architecture, server control, validation, applications, MVC, panel control, web form, debugging, error handling, API, Stack, heap, boxing, etc…
.NET is a framework to develop software applications. It is designed and developed by Microsoft and the first beta version released in 2000. It is used to develop applications for web, Windows, phone. Moreover, it provides a broad range of functionalities and support.
NET is a software development framework and ecosystem designed and supported by Microsoft to allow for easy desktop and web application engineering. It's a popular free platform currently used for a lot of different types of applications as it provides the programming environment for most software development phases.