Alwin Walther, IPM, and the Development of Calculator/Computer Technology in Germany, 1930-1945

The article discusses the work of the lnstitut für Praktische Mathematik (IPM) at the Technische Hochschule in Darmstadt, Germany, from 1930 to 1945, and how Alwin Walther (1898-1967) guided IPM in developing calculator and computer technology during that period.