INT 16 - PTxxx.COM - (xxx=CGAColor Graphics Adapter(Color/Graphics Adapter) One of the two video display boards introduced together with the original IBMInternational Busiuness Machines PCIBM PC.  See also HGC, MDA.,EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors.,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.,HER...) CALL GATE FOR GRAPHICS
	AH = AAh
	Various registers set up by high level language.
Return: Graphics performed
Note:	PT stands for Paint Tools which is a graphics library for Turbo Pascal,
	  Modula 2 and others from DataBiten in Sweden. The library is
	  installed as a memory resident driver.