Array           A type of a fixed number of components:
 Boolean         Logical true and false
 Char            Any single ASCII value, string constant of length one
 Compatablility  The relationship of two or more types
 Declaration     Defignes a typed value.
 Enumerated      Ordered sets of values beginning with zero
 File            Linear sequence of components
 Integer         One of the 5 predefined types
 Ordinal         All simple types other than real
 Pointer         A set of values that points to a dynamic variable.
 Real            Types real, single, double, extended, comp
 Record          Set number of components or fields of different types;
 Set             Set number of components of a particular ordinal type.
 Simple          Any ordered sets of values
 String          Sequence of charactors ranging from 1 to 255.
 Structured      Components types which hold various values
 Subranged       Ranged of values from and ordinal type
 TypeCasts       Changeing one variable type into another type