Karl Steinbuch was born on the 15th of June 1917 in Stuttgart-Bad Cannstatt. He studied physics at the University of Stuttgart during a time when Germany was under total control by the National Socialist regime.
Karl Steinbuch completed the first European fully transistorized computer known as the ER 56 while working for Standard Elektrik Lorenz. SEL marketed this machine commercially after its completion to represent a major leap forward from vacuum tube technology that dominated earlier computing efforts.
Helmut Gröttrup worked alongside Karl Steinbuch to create the word Informatik in 1957 to describe automatic information processing. This German term eventually evolved into the English concept of informatics or computer science through their collaboration.
Karl Steinbuch designed an early artificial neural network implementation called the Lernmatrix system which he published together with U. A. W. Piske in 1963. The Lernmatrix served as one of the earliest practical demonstrations of machine learning concepts in Europe by showing machines could adapt internal parameters based on experience.
After 1968, Karl Steinbuch turned his focus away from pure scientific research toward right-wing political activism within West Germany. He began supporting groups identified as part of the Neue Rechte movement while Richard Stöss documented this transition in a 1995 conference paper regarding nationalist thinking in the Federal Republic.