Jeri Ellsworth

Jeri Ellsworth is an American entrepreneur, computer chip designer and inventor, born on August 14, 1974. She became widely known in 2004 for designing a complete Commodore 64 imitating system on a chip that was housed inside a joystick and sold as the Commodore 30-in-1 Direct to TV, which runs thirty video games from the 1980s and at its peak sold more than 70,000 units in a single day through the QVC shopping channel. Self-taught in electronics and programming, she began with a Commodore 64 as a child, built a chain of computer shops in Oregon, and later moved into digital circuit design. She was hired by Valve Corporation to develop augmented reality hardware, was terminated in 2013, and then co-founded castAR to continue that work with permission; castAR shut down on June 26, 2017 without finishing development. She later started Tilt Five to build augmented reality hardware on the same principles, and she has spoken publicly about homebrew projects such as making semiconductor chips at home.