Computer museum was opened in 1996 by Chancellor of Germany Helmut Kohl. Its collection of first computing machines was collected by the pioneer of the industry Heinz Nixdorf. A 6000 sq. m museum entered the Guinness Book of Records as the largest computer museum in the world. Its exhibition is dedicated to five thousand years of informational technology development: from the appearance of written language in 3000 B.C. to the 21st century.
A clay plate with inscriptions dating back to 2350-2100 B.C. is kept in the computer museum. Here you will find a computing machine that Wilhelm Schickard made for Johannes Kepler in 1623; a replica of Leibniz’s step reckoner; the first mass produced calculator of the middle of the 19th century; the first mass produced type writer of 1878 (for example, Friedrich Nietzsche used this model); Morse telegraph; ciphering machine “Enigma”. There are over two thousand items in the museum.