Sketchpad was the first program ever to utilize a complete graphical user interface, using an x-y point plotter display and the recently invented light pen.
Sketchpad used an x-y point plotter display as well as the then recently invented light pen. Sketchpad was the first program ever to utilize a complete graphical user interface.
Sketchpad was the first program ever to utilize a complete graphical user interface. Sketchpad used an x-y point plotter display as well as the then recently invented light pen.
Sketchpad was the first program ever to utilize a complete graphical user interface. Sketchpad used an x-y point plotter display as well as the then recently invented light pen.