Serialization and Deserialization,Marshaling and unmarshaling in .Net Remoting

"In brief" said.. simple and great.

Thanks Mahesh

In addition to what Mahesh said, .Net Remoting is also used by applications within the same computer to communicate.

In brief, .NET Remoting is an API that allows you to communicate between two computers. Serialization and Deserialization is a way to convert an object and save it and vice versa. Marshaling is a method to convert objects and pass them on the network and share between two computers.
There are many articles on these topics. Go to C# Corner's home page, look for Search text box and search for these keywords.