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C# Overview and

Features

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Content

I. History of C#

II. Architecture

III. How to install

IV. Features

V. Code Sample

VI. Microsoft .NET Platform

VII. Why use C#

VIII.Conlusion

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What is C#?

C# ( pronounced as C-sharp ) is a new Java likelanguage from Microsoft. Microsoft says thatC# is a language with the power of C++ andsimplicity of Visual Basic. C# supposed to be

the best language for Microsoft's .NET

programming.

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History

In August, 2000, Microsoft, Hewlett-Packard and Intelco-sponsored the submission of specifications for theCommon Language Infrastructure (CLI) and C#programming language to the internationalstandardization organization ECMA

During next year the specifications were formulatedinto standards.

In December, 2001, the ECMA General Assemblyratified the 1st edition of the C# and CLI standards asECMA-334 and ECMA-335

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History II

In April, 2003, ISO ratified the standards

Work at ECMA on the next edition of theStandards is already underway

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Architecture

Common Language Runtime manages code execution

provides services

Compiler C# compiler is part of .NET Framework SDK

generatesMSIL + Metadata CPU specific Code (JIT)

Because the runtime supplies one or more JIT

compilers for each computer architecture it supports,the same set of MSIL can be JIT-compiled andexecuted on any supported architecture

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How to install

Install Windows 2000 and IE 5.5.

Install Microsoft .NET Framework SDK.Microsoft has it on MSDN site.

After installing these you can write your code inany text editor and save it as .cs extension.

To run the program use the csc command likecsc c:\myprogram.cs

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Features

Garbage collection relieves the programmer ofthe burden of manual memory management.

Variables in C# are automatically initialized by

the environment. Managed execution environment

Variables are type-safe.

native support for the Component ObjectModel (COM) and Windows-based APIs.

Built in versioning

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Features II

Restricted use of native pointers

With C#, every object is automatically a COMobject

Platform and language independent

Inside a specially marked code block, developers

are allowed to use pointers and traditionalC/C++ features such as manually managedmemory and pointer arithmetic.

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Features III

Compiler allows use of initialised Variables only

Strong exception handling

Full XML support Suited well for building Web Services

Array bounds checking

The language is intended for use in developingsoftware components suitable for deployment indistributed environments.

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Microsoft .NET Platform

Huge library of Functions

Collection of classes

Windows Application FrameworkWeb Framework for ASP.NET

Provides access to many kinds of Devices

Developed mainly in C# itself

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Why use C#

Full COM/Platform support for existing code integration.

Robustness through garbage collection and type safety.

Security provided through intrinsic code trust mechanisms.

Full support of extensible metadata concepts.

You can also interoperate with other languages, across platforms,with legacy data, by virtue of the following features:

Full interoperability support through COM+ 1.0 and .NETFramework services.

XML support for Web-based component interaction. Versioning to provide ease of administration and deployment.

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Conclusion

C# is a modern, object-oriented language thatenables programmers build solutions for theMicrosoft .NET platform. The framework

provided allows C# components to becomeXML Web services that are available across theInternet, from any application running on any

platform.