A mechanical calculator. Invented by the famous mathematician and philosopher Blaise Pascal.
A more sophisticated mechanical calculator. It was invented by a German mathematician called Gottfried Leibniz.
The first machine ever that used the idea of storage and programming by Joseph-Marie Jacquard.
It was invented by Charles Babbage and it was capable of doing a lot more than simple arithmetic operations.
It was invented by Charles Babbage and it has similarities with modern computers.
It was invented by Herman Hollerith. This machine was a pecursor of modern computers.
It was built at Harvard University under the direction of Howard Aiken. The Mark I provided vital calculations during the second World War. The Mark I was followed by three more models (Mark I-IV).
It was invented by Konrad Zuse. In addition it was a general-purpose mechanical computer.
It was invented by John V. Atanasoff and his assistant Clifford Berry and it was the first computer that encoded information electrically.
The first programmable electronic digital computer. It was invented by a team of telehone engineers directed by Tommy Flowers.
The first general-purpose totally electronic computer by John Mauchly and J. Presper Eckert.
It is charactirized by emergence of costly comercial computers, affordable only by professionals.
The vacuum tubes were replaced by transistors.
The integrated circuit and the chip were invented which reduced the cost and the size of computers.
This period was first emerged the desktop computers. In addition the electronics industry andvanced and that allowed whole computer subsystems to fit on a circuit board.
It is characterized by the miniaturization of computers. In this period we saw the fist laptops.
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