Managed Code refers to the components developed within the framework and which can be managed by the CLR for execution. These components can be managed by the framework itself and can be Garbage Collected.
Unmanaged Code refers to the components which are not developed within the framework and which need their own environment to be managed or executed. For example, C++ or assembly code which aren’t managed or can’t be garbage collected by the .NET framework directly.
These are called inside the Framework by means of wrappers.
