Common Type System (CTS)

CTS describes how types are declared, used and managed in the runtime and facilitates cross-language integration, type safety, and high performance code execution.

Common type system brings all .Net languages data types on a common platform.

CTS defines all basic types that every language must follow the dotnet framework
Example:
In VB.net declare integer as "Dim i as integer"
In C#.net declare integer as "integer i"

cts provided common data type for all the languages ...like system.int 16 and system .int 32.....