Advanced Gravis Computer Technology
Their most famous products were the Gravis PC GamePad, at one time one of the most popular gaming controllers for the PC, the once-ubiquitous Gravis Joystick (black with red buttons), and the Gravis Ultrasound add-on card, competitor to the Sound Blaster. At its peak, the company had almost 300 employees, and was at the time the world's largest manufacturer of computer joysticks and gamepads.
- "Immersion and Gravis Partner to Create New Force Feedback Devices; Innovative Technology Extends Opportunities for Developers". 2000-03-10. Retrieved 2009-10-22.
- ftp.gravis.com drivers
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