Quoting "Prof. Harley Flanders" harley@umich.edu:
It is also time for more accurate integers. Borland introduced Int64 10-20 years ago, and it has remained the standard highest accuracy integer type.
This plethora of names is totally unnecessary. Pascal simply has a maxint value, which specifies the accuracy available. When an integral type is specified, it normally has a range. That range is used to specify the integer size used.
This sort of foolishness is typical of the C based attitude of Borland.