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What is .NET?

 It is Microsoft's strategy for development and deployment of software.  Microsoft has fundamentally changed the way programs execute under Windows.  Preference is now for interpreted code rather than machine code.  Modified versions of C++ & VB; C# added.  The environment has been redesigned to take full advantage of network standards.

.NET Architecture

.NET Experience

Windows Forms

Console Applications

Web forms & Web services

.NET Framework Base Class Libraries Common Language Runtime

Common Language Runtime

 Interprets a byte code: Microsoft Intermediate Language (IL).  Similar to Java Virtual Machine.  Some features:  Security Garbage collection Exception handling

 Also supports unmanaged code: machine code.

Consists of set of common rules followed by all the languages of .net framework Interoperability between objects and applications. The classes that follow by the rules specified by CLS are termed as CLS compliant classes  CTS provides a type system that is common across all languages.

Language Neutrality

Runtime Class Library  Removes much of the need for language specific libraries like C++'s STL.  Examples of items found in the Runtime: Basic types Collection classes Input/Output Graphical user interface library Access to traditional Windows facilities (COM, ADO)

User and Program Interfaces

Windows Forms

Web Forms

Console Applications

Assembly A logical collection of one or more exe and dll file containing an application’s code and resources It contains  Codes in MSIL  Manifest A metadata description of the code and resources

.NET Assembly - The New .DLL

What are the areas of .NET? • Define products implemented by Microsoft • Define client devices that use these services • Defines backbone for the applications to build on. • Managing, deploying and orchestrating the Web Services. • Microsoft provides a tool for building the .NET framework.

Solution (Microsoft Intermediate Language) Different Languages are Compiled into MSIL

Source code : Any languages

Development tools

Just-In-Time MS Intermediate Language


Platform specific code

.Net platform features

.NET memory management

Code access security • Most software comes from web.A user doesn’t know whether a Web code is safe or not. • .NET allows an administrator to specify privileges that each managed code has. • You can specify these privileges in three level by modifying XML-based files  Enterprise  Machine  User

Security & Managed Code

We are hereby very much thankful for being assigned such a nice topic on MICROSOFT .NET to give a presentation here right in front of you all. We thank our faculty Mrs. Smitha who continuously helped and supported us during the preparation for this presentation for which we thank her a lot.