He replied that the queues would carry only graphics commands, so they won't tend to turn over at a high enough rate to cause thrashing.
The graphics commands were based on 'turtle' keywords and provided a flexible means of drawing.
High-level graphics commands are implemented in the Asymptote language itself, allowing them to be easily tailored to specific applications.
Thus, the entire set of Extended Color Basic graphics commands could be used with the artifact colors.
Use of POKE commands also made these colors available to the graphics commands, although the colors had to be drawn one horizontal line at a time.
It may have also been nicknamed Gee-Whiz because it had a large number of graphics commands.
In immediate mode, graphics commands are issued directly into the graphics pipeline and the rendering engine executes them immediately.
This proved very difficult to use, especially as we were unable to run under CADDS using graphics commands, due to the lack of some system make files.
Typical HPGL files start with a few setup commands, followed by a long string of graphics commands.
They added a number of useful extensions, notably the ability to define your own graphics commands (macro) and character sets (DRCS).