.NET is a developer platform made up of tools, programming languages, and libraries for building many different types of applications.The base platform provides components that apply to all different types of apps. Additional frameworks, such as ASP.NET, extend .NET with components for building specific types of apps.Here are some things included in the .NET platform: The C#, F#, and Visual Basic programming languages Base libraries for working with strings, dates, files/IO, and more Editors and tools for Windows, Linux, macOS, and Docker

MVC is a design pattern used to decouple user-interface (view), data (model), and application logic (controller). This pattern helps to achieve separation of concerns. Using the MVC pattern for websites, requests are routed to a Controller that is responsible for working with the Model to perform actions and/or retrieve data. The Controller chooses the View to display, and provides it with the Model. The View renders the final page, based on the data in the Model. ASP.NET supports many database engines including SQLite, SQL Server, MySQL, PostgreSQL, DB2 and more, as well as non-relational stores such as MongoDB, Redis, and Azure Cosmos DB.

.NET Core is a cross-platform implementation for running websites, services, and console apps on Windows, Linux, and macOS. .NET Core is open source on GitHub. Xamarin/Mono is a .NET implementation for running apps on all the major mobile operating systems, including iOS and Android. .NET Standard is a formal specification of the APIs that are common across .NET implementations. This allows the same code and libraries to run on different implementations. There are various implementations of .NET. Each implementation allows .NET code to execute in different places—Linux, macOS, Windows, iOS, Android, and many more.

HTML is the markup language that we use to structure and give meaning to our web content, for example defining paragraphs, headings, and data tables, or embedding images and videos in the page. CSS is a language of style rules that we use to apply styling to our HTML content, for example setting background colors and fonts, and laying out our content in multiple columns. JavaScript (JS) is a scripting language that enables you to create dynamically updating content, control multimedia, animate images, and pretty much everything else. Simply put jQuery is a collection of pre-written JavaScript code (known as a JavaScript library) that you can add to your own coding projects. Ajax is a set of web development techniques using many web technologies on the client side to create asynchronous web applications. With Ajax, web applications can send and retrieve data from a server asynchronously without interfering with the display and behavior of the existing page

Android is a mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. ... Some well known derivatives include Android TV for televisions and Wear OS for wearables, both developed by Google.

iOS is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone and iPod Touch; it also powered the iPad until the introduction of iPadOS in 2019

Xamarin is a Microsoft-owned San Francisco-based software company founded in May 2011 by the engineers that created Mono, Xamarin.Android and Xamarin.iOS, which are cross-platform implementations of the Common Language Infrastructure and Common Language Specifications. Xamarin Forms is a feature of Xamarin, and extends the .NET developer platform with tools and libraries for building mobile apps. Xamarin Forms is an open source cross-platform framework from Microsoft for building iOS, Android, & Windows apps with .NET from a single shared codebase.

Dart is a client-optimized programming language for apps on multiple platforms. It is developed by Google and is used to build mobile, desktop, server, and web applications. Dart is an object-oriented, class-based, garbage-collected language with C-style syntax. Dart can compile to either native code or JavaScript. Flutter is an open-source UI software development kit created by Google. It is used to develop applications for Android, iOS, Windows, Mac, Linux, Google Fuchsia and the web from a single codebase. The first version of Flutter was known as codename "Sky" and ran on the Android operating system. it creates very emmersive and modern-looking mobile applications and has a very robust outlook.

Embarcadero RAD Studio is an ultra-fast cross-platform Native App IDE from Embarcadero with flexible Cloud services and broad IoT connectivity that you know, with a lot more packed into it. ... RAD Studio 10.4 Sydney helps to
1. create fast native apps for Windows, Mac and mobile from one codebase,
2. create Linux and Windows server applications.

Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft. It is used to develop computer programs, as well as websites, web apps, web services and mobile apps. ... Visual Studio includes a code editor supporting IntelliSense (the code completion component) as well as code refactoring.

Microsoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications—which may run either on the same computer or on another computer across a network. imilar to other RDBMS software, SQL Server is built on top of SQL, a standard programming language for interacting with the relational databases. SQL server is tied to Transact-SQL, or T-SQL, the Microsoft’s implementation of SQL that adds a set of proprietary programming constructs. SQL Server works exclusively on Windows environment for more than 20 years. In 2016, Microsoft made it available on Linux. SQL Server 2017 became generally available in October 2016 that ran on both Windows and Linux.

MySQL is an Oracle-backed open source relational database management system (RDBMS) based on Structured Query Language (SQL). Although it can be used in a wide range of applications, MySQL is most often associated with web applications and online publishing. In association with a scripting language it is possible to create websites which will interact in real-time with a mySQL database to rapidly display categorised and searchable information to a website user.