Typewriter plotters utilize ballpoint pens to draw text and graphics. Panasonic produced multiple models, such as the RK-P400C with RS-232 for computer control and the RK-P440, requiring an external interface. Other manufacturers included Silver Reed, Smith Corona, and Brother, with each offering unique features. These devices operated with colored pens and were portable, appealing to retro computing enthusiasts. Basic plotters were also integrated into calculators and music keyboards, while some early personal computers had built-in plotters as accessories.
Typewriter Plotters
