Definition:
This is the environment for building, deploying and running Web Services and other applications. It contains three main parts
· CLR
· Framework Classes
· unified class libraries
Common Language Runtime (CLR):
The common language runtime is the execution engine for .NET Framework applications. It provides a number of services, including the following:
o Code management (loading and execution)
o Application memory isolation
o Verification of type safety
o Conversion of IL to native code
o Access to metadata (enhanced type information)
o Managing memory for managed objects
o Enforcement of code access security
o Exception handling, including cross-language exceptions
o Interoperation between managed code, COM objects, and pre-existing DLLs (unmanaged code and data)
o Automation of object layout
o Support for developer services (profiling, debugging, and so on)
CLS and CTS are there in CLR.
Common Language Specification (CLS):
It is the set of guidelines for the language supporting the CLS to follow, so that it can communicate with other .NET languages in a seamless manner. The CLS is a set of constructs and constraints that serves as a guide for library writers and compiler writers.
Common Type System (CTS):
The common type system is a rich type system, built into the common language runtime that supports the types and operations found in most programming languages.
Types of Application in .Net Frame work
o Console application
o Windows Application
o Web application
o Class library
User control
porchelvi
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