This trackball device, which is predates all ... but it was 30 years ago yesterday that Xerox unveiled the world’s first optical mouse at its PARC facility. The mouse used LEDs and optical ...

At first glance it looks like a big mouse ... In our tests, the Kensington Orbit Trackball Mouse felt cheap and tended to slide around on a desk because it was light and its rubber feet weren ...

When we first heard about a mouse, we weren’t convinced ... There are several solutions for that, but the oldest one is probably the trackball. Ploopy is an open source trackball you can ...