True BASIC programming language
True BASIC is a fully structured variant of the BASIC programming language descended from Darthmouth BASIC – the original BASIC – invented by college professors John G. Kemeny and Thomas E. Kurtz.When True BASIC appeared on the market, at the outset based on Darthmouth BASIC 7, it implemented a number of new features over QBASIC, and allowed the user a 16 color (redefinable), 640×480 backdrop for programming. True BASIC introduced new functions for graphics primitives like plot, plot area, flood, etc. It also was the first to provide a method for saving a portion of the screen and blitting it elsewhere, but had no proper buffering implementation.
There are versions for MS-DOS, Windows, MacOS, and Linux systems.
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