An ergonomic keyboard from P.C.D. Maltron Ltd., a company that specializes in computer keyboards that prevent or eliminate repetitive stress injury (RSI), as well as accommodate people with disabilities. Using key layouts that are slanted and tilted to conform to the natural curvature of the hands when typing, Maltron keyboards are available for typing with both hands or only one. There is also a model for use with a stylus that is head mounted or held in the mouth. See RSI
A Right-Handed Maltron
This Maltron keyboard, which was designed in 1981, is used with only the right hand.