1. Predefined Types
   1. Value Types
      1. Numeric
         1. Integer
            1. 8-Bit
            2. sbyte
            3. byte
            4. 16-Bit
            5. short
            6. ushort
            7. 32-Bit
            8. int
            9. uint
            10. 64-Bit
            11. long
            12. ulong
         2. Floating Point
            1. decimal
            2. float
            3. double
      2. Non-numeric
         1. bool
         2. char
   2. Reference Types
      1. object
      2. string
2. User-Defined Types
   1. Value Types
      1. struct
      2. enum
   2. Reference Types
      1. class
      2. interface
      3. delegate
      4. array