plenty of places to look isn't there Just Me
I was haunted by a question whose answer has long eluded historians. The Germans always had the lists of Jewish names. Suddenly, a squadron of grim-faced SS would burst into a city square and post a notice demanding those listed assemble the next day at the train station for deportation to the East. But how did the Nazis get the lists? For decades, no one has known. Few have asked.
The answer: IBM Germany's census operations and similar advanced people counting and registration technologies. IBM was founded in 1898 by German inventor Herman Hollerith as a census tabulating company. Census was its business. But when IBM Germany formed its philosophical and technologic alliance with Nazi Germany, census and registration took on a new mission. IBM Germany invented the racial census-listing not just religious affiliation, but bloodline going back generations. This was the Nazi data lust. Not just to count the Jews - but to identify them.
People and asset registration was only one of the many uses Nazi Germany found for high-speed data sorters. Food allocation was organized around databases, allowing Germany to starve the Jews. Slave labor was identified, tracked, and managed largely through punch cards. Punch cards even made the trains run on time and cataloged their human cargo. German Railway, the Reichsbahn, Dehomag's biggest customer, dealt directly with senior management in Berlin. Dehomag maintained punch card installations at train depots across Germany, and eventually across all Europe.
How much did IBM know? Some of it IBM knew on a daily basis throughout the 12-year Reich. The worst of it IBM preferred not to know-"don't ask, don't tell" was the order of the day. Yet IBM NY officials, and frequently Watson's personal representatives, Harrison Chauncey and Werner Lier, were almost constantly in Berlin or Geneva, monitoring activities, ensuring that the parent company in New York was not cut out of any of the profits or business opportunities Nazism presented. When U.S. law made such direct contact illegal, IBM's Swiss office became the nexus, providing the New York office continuous information and credible deniability
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http://www.nizkor.org/hweb/people/b/black-edwin/ibm-and-the-holocaust.html