What is Dot Net Framework Microsoft officially defined .NET - TopicsExpress

What is Dot Net Framework Microsoft officially defined .NET Framework as follows: The .NET Framework is the heart of Microsoft .NET. The .NET Framework is a software development platform of Microsoft .NET. Like any platform, it provides a runtime, defines functionality in some libraries, and supports a set of programming languages. The .NET Framework provides the necessary compile-time and run-time foundation to build and run .NET-based applications. Microsoft Intermediate Language (MSIL) A .NET programming language (C#, VB.NET, J# etc.) does not compile into executable code; instead it compiles into an intermediate code called Microsoft Intermediate Language (MSIL). As a programmer one need not worry about the syntax of MSIL - since our source code in automatically converted to MSIL. The MSIL code is then send to the CLR (Common Language Runtime) that converts the code to machine language which is then run on the host machine. Type of .NET Languages To help create languages for the .NET Framework, Microsoft created the Common Language Infrastructure specification (CLI). The CLI describes the features that each language must provide in order to use the .NET Framework and comm6n language runtime and to interoperate with components written in other languages. If a language implements the necessary functionality, it is said to be .NET-compliant. Common Type System (CTS) The language interoperability, and .NET Class Framework, are not possible without all the language sharing the same data types. What this means is that an int should mean the same in VB, VC++, C# and all other .NET compliant languages. Same idea follows for all the other data types. This is achieved through introduction of Common Type System (CTS). Common Language Specification (CLS)) One of the obvious themes of .NET is unification and interoperability between various programming languages. In order to achieve this; certain rules must be laid and all the languages must follow these rules. In other words we can not have languages running around creating their own extensions and their own fancy new data types. CLS is the collection of the rules and constraints that every language (that seeks to achieve .NET compatibility) must follow. Common Language Runtime (CLR) The Common Language Runtime (CLR) is a very important part of the .NET Framework. At the base level, it is the infrastructure that executes applications, and allows them to interact with the other parts of the Framework. It also provides important capabilities in optimizing, securing, and providing many robust capabilities such as application deployment and side-by-side execution. What is Dot Net INTRODUCTION The .NET is the technology from Microsoft, on which all other Microsoft technologies will be depending on in future. It is a major technology change, introduced by Microsoft, to catch the market from the SUNs Java. Few years back, Microsoft had only VC++ and VB to compete with Java, but Java was catching the market very fast. With the world depending more and more on the Internet/ Web and java related tools becoming the best choice for the web applications, Microsoft seemed to be loosing the battle. Thousands of programmers moved to java from VC++ and VB. To recover the .market, .Microsoft announced .NET. Just in Time Compiler(JIT) Machines cannot run MSIL directly. JIT compiler turns MSIL into native code, which is CPU specific code that runs on the same computer architecture as the JIT compiler. Because the common. Language runtime supplies a JIT compiler for each supported CPU architecture, developers can write a set of MSIL that can be JIT-compiled and run on computers with different architectures. UNIFIED CLASSES (Base Class Library) The term .NET framework refers to the group of technologies that form the development foundation for the Microsoft .NET platform. The key technologies in this group are the run time and the class libraries. User and Program Interface The .NET framework provides the following tools for manag1ng user and application interfaces: • Windows forms • Web Forms • Console Applications • Web Services These tools enable users to develop user-friendly desktop-based as well as web-based applications using a wide variety of languages on the .NET platform.