HPGL


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Hewlett-Packard Graphics Language. A computer language used to control pen-plotters. It converted object coordinates on screen to Pen up, Pen down and X,Y coordinate values which could be used to plot computer drawings on sheets of paper using pen and pencil plotters. The language was a de-facto standard for most plotters. While still in limited use, it became less common place (virtually obsolute) as RTL? (Raster Transfer Language) and Postscript Printers/Plotters became more common in the market.