Yabasic in a Nutshell
Yabasic implements the most common and simple elements of the basic language. It comes with goto/gosub, with various loops, with user defined subroutines and Libraries. Yabasic does monochrome line graphics and printing. Yabasic runs under Unix and Windows; it is small (around 200KB) and free.
Yabasic for PlayStation 2, aka Playstation-Basic, is a variant of Yabasic which features as a free bonus program on the PlayStation 2 inbox demo disc in Europe and Australasia.
Playstation-Basic programs can be saved on memory cards for storage and swapping. This variant of Yabasic introduces colour and GUI-enhancements to the original language.