The variables that are based on value types directly contain values. The characteristics of value- type variables that are supported in C# programming language are as follows: – All value- type variables derive implicitly from the System.ValueType class – You cannot derive any new type from a value type – Value types have an implicit default constructor that initializes the default value of that type – The value type consists of two main categories: o Structs – Summarizes small groups of related variables. o Enumerations – Consists of a set of named constants.