Pre- Digital Comuters - Eletromechanicals

An eletromechanical compter has both electrical and mechanical (moving) parts. Digital means having digits, or numbers.

  Mark 1

 Aiken's computer, called the Mark 1, accepted information through paper tape. It stored and processed the information. It printed the results on an electric typewriter. The Mark I was able to do many different tasks. It was a huge machine. It took up the space of a school gymnasium. It took only a few seconds to calculate a math problem-quite a feat for 1944! The Mark I is known today as the world's first electromechanical computer.

The age of "modern computers" began in 1944. In that year an American engineer at Harvard University, Howard Aiken, built a computer. It worked very much like a machine designed more than 100 years earlier-Babbage's Analytical Engine.