CLR means Common Language Runtime.It is  Major component of 
the .NET frameworkIt provides no of benefits to the 
developers such as Exception handling,Security,Debugging 
and Versioning...

Common Language Runtime is Runtime engine which converts 
Microsoft Intermediate Language in machine understandable 
code, it is similar to JVM in Java

CLR is an execution engine for .net.It is used to convert 
the highlevel language code into MSIL(Microsoft 
Intermediate Language).So this MSIL again converted into 
m/c language by JIT compiler(Just In Time).

The CLR is the main coponent for .Net framework.So the .Net 
framework supports 44 languages.

kamal...

Full of CLR is Common Language Runtimeand its forms the 
heart of thye .NET Framework. All language have rumtime and 
its the responsibility of the runtime to take care of the 
code execution of the program.

CLR actually take care ofentire execution, memory managment 
of .net applicatin.COde that u developed with alanguage 
compiler that targets runtimeis called as managed code; it 
benifits from from feature such as cross language 
integartion, cross-language exception handlaing, enhance 
securityversion & deployment support 
This runtime is allocated by visual studio.NET IDE is 
called as runtime host.
it's benifitsw are 

1.it improve Performance
2.ability to easily use compopnant developed in other 
languages
3.Cross language integration,espacially cross-language 
inheritance
4.Garbage collection
5.slf describing obj which makes using IDL unnecessary
6.The ability compile once & run on any CPU & operating 
system that support the runtime

its a comman Language Runtime

CLR is Comman Language Runtime engine is used to excute the
compiled code.

CLR is the execution engine of .net. whenever an execution 
command is given the cls progra activates a 'jit' compiler 
which inturn interprets the program according to the 
operating system standards and then execution takes place

Common Language Runtime (CLR) 

working of CLR:-

When the .NET program is compiled, the output of the 
compiler is not an executable file but a file that contains 
a special type of code called  the Microsoft Intermediate 
Language (MSIL), which is a low-level set of instructions 
understood by the common language run time. This MSIL 
defines a set of portable instructions that are independent 
of any specific CPU. It's the job of the CLR to translate 
this Intermediate code into a executable code when the 
program is executed making the program to run in any 
environment for which the CLR is implemented. And that's 
how the .NET Framework achieves Portability. This MSIL is 
turned into executable code using a JIT (Just In Time) 
complier. The process goes like this, when .NET programs 
are executed, the CLR activates the JIT complier. The JIT 
complier converts MSIL into native code on a demand basis 
as each part of the program is needed. Thus the program 
executes as a native code even though it is compiled into 
MSIL making the program to run as fast as it would if it is 
compiled to native code but achieves the portability 
benefits of MSIL.

CLR is the execution engine of .net. whenever an execution 
command is given the cls progra activates a 'jit' compiler 
which inturn interprets the program according to the 
operating system standards and then execution takes place

CLR means Common Language Runtime it is the heart of .net
framework in simply we can defined as clr manages the
execution of the program.