The Z11 is the first computer that was built in series in Germany and used commercially. Coming out in 1955, 38 units were delivered in mid-1960. The two parts of the panel are currently mounted on top of each other in an auxiliary frame until a creative solution for the arrangement in the original position is found.
On the occasion of Konrad Zuse's 110th birthday on June 22nd, 2020, the Faculty of Mathematics and Physics in cooperation with the Computer Museum of the University of Stuttgart published a video as part of the lecture series "Mathematics and Physics between School and University". The recordings for this took place on May 29, 2020.
Under the title "The Roots of the Computer", Klemens Krause from the Computermuseum Stuttgart presents various algorithms for calculating roots, which he then demonstrates on various mechanical and electronic calculating machines from his collection.
The lecture gives an insight into the history of the computer and the interplay between algorithms and technical implementation options. Konrad Zuse was not only the designer of the first freely programmable (mechanical and digital) calculating machines, essential aspects of binary floating point arithmetic and their implementation in digital calculating systems can also be traced back to him.
The video is in German.
The computer museum team examines a Z22 magnetic drum.
In 1986, Konrad Zuse began to reconstruct the Z1 from memory, perhaps to prove to the world that this machine could have been built back then and that it could have worked. The reconstructed machine is exhibited in the German Museum of Technology. For a better understanding of the mechanical switching element technology, Klemens Krause built a cascadable arithmetic unit out of aluminum strips and spacer sleeves, on which one can understand and try out the function of the half adders and the one-step transfer according to Konrad Zuse.
In an entertaining talk with Apl. Prof. Jens Wirth illuminates Prof. Wendland (Department of Mathematics at the University of Stuttgart) the various stations on his path to mathematics and the challenges and innovations during this time, such as the introduction of the Numerk lectures and work on the Z22 and Z23 by Konrad Zuse.
The interview is in German.
Prof. Wendland and Klemens Krause (Computer Museum)