Who is the inventor of the first input device?

Answer 1

There can be various opinions on this. The abacus, invented thousands of years ago, is sometimes regarded as the first computer, but obviously we don't know who invented it. Napier's Bones or Rods, invented by John Napier, are used for doing calculations, going back to the 16th century. Charles Babbage is regarded as the father of computers, having invented a computer device in the 19th century. Other computing devices used methods from other areas of industry, like punched cards used in Herman Holleriths Tabulating machine, also in the 19th century. So there are lots of contenders for the answer to your question.