What is one hand keyboard?

A one-hand keyboard is a device that allows users to input text or commands using only one hand. These keyboards are designed for people with physical disabilities, amputees, and individuals that need to operate a computer with a single appendage. There are various types of one-hand keyboards, including those that are designed for the right or left hand, as well as those that are split in half to be used with either hand. The keys on these keyboards are typically arranged in a way that maximizes efficiency and minimizes the need for hand movement. The goal of a one-hand keyboard is to provide a comfortable and efficient way for users to input information into a computer or other device.