Context: Before the US joined the war, IBM had a business deal with the Nazi regime to supply their machines. Their tabulation machines were used for everything from census and logistics to concentration camp administration. IBMs punch card systems along with numbers tattooed on prisoners were used to track their relocations, labour schedules and executions.
IBM claims that they lost control of their German division after the US entered the war but some historians claim that they still continued to profit from their partnership knowingly and despite the fact.
They may have not committed the atrocities but they enabled the industrialization of it. Those punch card computers needed very specific desgins to do what the Nazis wanted. To the point that IBM knew about the camps and what was happening in the early ones.