Konrad Zuse's Early Computers

This book describes the historical development of the architectures of the first computers built by the German inventor Konrad Zuse in Berlin between 1936 and 1945. Zuse's machines are historically important because they anticipated many features of modern computers.

Specifically, these include the separation of processor and memory, the ability to compute with floating-point numbers, a hardware architecture based on microprogramming of the instruction set, and a layered design with a high-level programming language on top. In fact, Zuse's early computers are closer to modern computers than the Harvard Mark I or ENIAC, two other contenders for the title of "world's first computer." The theoretical program first conceived by Zuse in 1936/37 was fulfilled with a series of machines built before and during World War II: the Z1, Z2, Z3, and Z4. Separate chapters deal with the architecture of each computer, culminating in the description of Plankalkül, the first proposal for a high-level programming language.

Students of the sciences and practitioners of computer science should have no trouble following the material. The concise introductory summary sets the reader on the historical path to retrace this remarkable intellectual adventure.

1. Konrad Zuse and the Dawn of the Computer Age. - 2. The Race to Build the Computer in World War II. - 3. The Z1: Architecture and Algorithms of Zuse s First Computer. - 4. The Z2 and the Cipher Machine. - 5. The Architecture of the Z3. - 6. How to Make Zuse s Z3 a Universal Computer. - 7. The S1 and S2: Zuse s Work for the German Military 1941-1945. - 8. The Architecture of the Z4. - 9. The Conditional Jump: Making the Z4 Universal. - 10. Plankalkül. - 11. Zuse s Computer for Binary Logic. - 12. The First Code for Computer Chess. - 13. The Reconstruction of Konrad Zuse s Z3. - 14. Epilogue.