Tough to see your computer screen through all the smudges and fingerprints? Here's how to rectify that, pronto.

[Vijay] has been working since 3 years on a Refreshable Braille Display but has only recently ... project he is working on is the Braille Keyboard – a tactile input device that can be used ...

He’s created a computer entirely out of logic chips ... a microcontroller-powered system with an integrated keyboard and display. The DUO Portable, as [Jack] calls his new toy, is built around ...