Can’t Explain It — or Do Without It

by Will Hughes   
Posted December 19, 2007

Jan A. Rajchman

Among the more than 100 patents he obtained while working for RCA, Rajchman developed the electron multiplier calculating device; the read-only memory computer system; the magnetic information-handling system (core memory); and the electronic microcopy apparatus. Your computer would not be the same without Rajchman’s innovations.