Sometimes the simplest of projects end up revealing the most interesting of things, as for example is the case with [Ryo Mukai]’s light pen for the Vectrex console. It’s an extremely simple device ...

If you worked with computers back in the 1970s, there’s a good chance you used a light pen at some point: a simple input device that you’d point at the CRT screen to highlight text, choose menu ...

When an ulcer creates an actual perforation in the digestive tract, surgery is currently the only treatment. In the ...

A light-sensitive stylus wired to a video terminal used to draw pictures or select menu options. The user brings the pen to the desired point on screen and presses the pen button to make contact.

A new patent could hint at a future Surface Pen can harvest its power from the LEDs in your Surface's display. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Study design. This prospective, randomized, controlled, parallel-group study compared the use of pen devices with conventional vials and syringes for the administration of insulin in hospitalized ...