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 ...

Way before you kids had touch screens and mice, we had to walk uphill both ways to tell a computer where we were pointing at on the screen. I speak, of course, of light pens. When these photodiodes in ...

Though Apple has shunned the stylus in favor of multi-touch on the iPhone and iPod touch, a new patent application suggests the company is investigating superior handwriting and input recognition via ...