As computer power grew, it became possible to host the PS system in the computer rather than the printer. This led to the natural evolution of PS from a printing system to one that could also be used as the host's own graphics language. There were numerous advantages to this approach; not only did it help eliminate the possibility of different output on screen and printer, but it also provided a powerful graphics system for the computer, and allowed the printers to be "dumb" at a time when the cost of the laser engines was falling. In a production setting, using PostScript as a display system meant that the host computer could render low-resolution to the screen, higher resolution to the printer, or simply send the PS code to a smart printer for offboard printing.
as computer power grew it became possible to host the ps system in the computer rather than the printer this led to the natural evolution of ps from a printing system to one that could also be used as the host's own graphics language there were numerous advantages to this approach; not only did it help eliminate the possibility of different output on screen and printer but it also provided a powerful graphics system for the computer and allowed the printers to be "dumb" at a time when the cost of the laser engines was falling in a production setting using postscript as a display system meant that the host computer could render low-resolution to the screen higher resolution to the printer or simply send the ps code to a smart printer for offboard printing