Limits to QuickBASIC - Names, Strings, and Numbers
                                       Maximum                 Minimum
Variable name length                   40 characters           1 character
String length                          32,767 characters       0 characters
Integers                               32,767                 -32,768
Long Integers                          2,147,483,647          -2,147,483,648
Single precision numbers (positive)    3.402823 E+38           1.401298 E-45
Single precision numbers (negative)   -1.401298 E-45          -3.402823 E+38
Double precision numbers (positive)
                          Maximum:     1.797693134862315 D+308
                          Minimum:     4.940656458412465 D-324
Double precision (negative)
                          Maximum:    -4.940656458412465 D-324
                          Minimum:    -1.797693134862315 D+308