Another major addition was the concept of " strip graphs ", a mode that emulated paper pen plotters that moved up and down while the paper was wound under them.
22.
In the 1980s, the small and lightweight HP 7470 introduced the " inkjet and laser printers, inexpensive memory and computers fast enough to rasterize color images, pen plotters have all but disappeared.
23.
Early pen plotters, e . g ., the Calcomp 565 of 1959, worked by placing the paper over a roller that moved the paper back and forth for X motion, while the pen moved back and forth on a track for Y motion.
24.
But good graphics weren t enough to supplant 1-2-3, and in fact the company learned that 1-2-3 users weren t even printing their graphics, since the cable for the only low-cost pen plotter was wired incorrectly.
25.
Also, conventional ball-point pens can be modified to work in most pen plotters . " Now that I have the name I even found some holding a normal pens [ https : / / macroenter101 . files . wordpress . com / 2014 / 02 / old-plotter-large . jpg.
26.
Vector graphics can be created in form using a pen plotter, a special type of printer that uses a series of ballpoint and felt-tip pens on a servo-driven mount that moves horizontally across the paper, with the plotter moving the paper back and forth through its paper path for vertical movement.
27.
Printed Circuit Boards ( PCB's ) and Small Scale Integrated Circuits ( SSIC ) were manually traced buy an operator, usually a draftsman or electronic engineer then plotted on a large pen plotter ( In later years to faster Electrostatic Plotters ) to be visually inspected to confirm that the physical layout properly matched the schematic.
28.
:. . . although a pen plotter didn't " quite " use a " normal ballpoint pen ", but rather a technical pen system with a short, stubby pen made to be held by ( or screwed into ) the plotter's head : they're not ergonomically suitable for using hand held.
