Computer science development of sophisticated computing equipment. Wilhelm Schickard designed and constructed the first working mechanical calculator in 1623. In 1673, Gottfried Leibniz demonstrated a digital mechanical calculator, called the Stepped Reckoner. He may be considered the first computer scientist and information theorist, for, among other reasons, documenting the binary number system. In 1820, Thomas de Colmar launched the mechanical calculator industry when he released his simplified arithmometer, which was the first calculating machine strong enough and reliable enough to be used daily in an office environment. Charles Babbage started the design of the first "automatic mechanical calculator", his Difference Engine, in
Sprout (computer) TouchMat. For additional input, Sprout includes an Adonit stylus, as well as a Bluetooth-powered set of keyboard and mouse. This enables users to interact with physical and digital content while working. Content can be digitally captured and manipulated in 2D or 3D directly on the TouchMat interface. HP claims that this greatly simplifies and streamlines the creative process. Sprout (computer) Sprout by HP (stylized as sprout) is a personal computer from HP Inc. announced on October 29, 2014 and released for sale on November 9, 2014. The system was conceived by Brad Short. Eric Monsef, a former Apple Inc. employee,