-
Howard Aiken built MARK-1, the first programmable calculator. It was programmed by connecting external plugs, it was huge and unreliable, but the computer age began.
-
They used punched tokens to take the data and the programs. The first of these computers was the ENIAC
-
Large computers with many terminals that used punched cards and magnetic tapes to input data and archive the results.
-
They were already mini-computers that used to use keyboard and screen and stored the information on magnetic disks such as IBM 360 and UNIVAC 90.
-
They allowed to further reduce the size of all computers and especially in the production of small and powerful microcomputers such as personal computers.
-
The Epson HX-20 was the first laptop in history. This computer features a keyboard, rechargeable nickel cadmium battery, a 120 by 32 pixel LCD screen, two Hitachi microprocessors, a pocket calculator-sized matrix printer and an integrated micro-cassette data storage device.
-
It consists mainly on our nowadays computers, and the ones to come. Some examples are: Mac, Hp, Dell, Epson, Toshiba, Lenovo, Sony, Samsung, etc.
