What is managed and unmanaged code

Visual Studio have made the life of developer very easy by providing the powerful interfaced IDE which helps to create the applications faster than any other technology. We all remember the coding in Turbo C compiler in which the output produced is “machine level language“.

Before Visual studio 2003, the output produced by the compilers were machine level language which can be pronounced as “UnManaged code“. Machine level language compiles and run on same machine or machine having same chip or configuration but it is not sure that it will run on another machine.

After Visual studio 2003, the output produced by the compilers of C# and VB were not “machine level language”, instead it was “Intermediate Language” with some metadata info which is executed by the “Common Language Runtime (CLR)“. so we can say that output produced by the compilers of C# and VB after Visual studio 2003 is “Managed Code“.

To read more on this topic, please refer below good articles:

1. What is Managed Code ?
2. Managed, Unmanaged, Native.