The document summarizes the origins and development of the modern keyboard. It describes how early keyboards had letters arranged alphabetically, which caused jamming issues when common letter pairs were pressed. Amos Densmore and Christopher Sholes developed the QWERTY keyboard to separate common letters and avoid jamming. While the Remington No. 1 typewriter introduced mechanical writing, the Remington No. 2 established the modern keyboard layout of capital and lowercase letters. The document also proposes a specialized keyboard design with the most common letters on the home row to minimize finger movement.