1949 -An Wang files a patent for magnetic core memory using ferrite. It was entitled “pulse transfer controlling devices.” This was the first sign and the rise of Wang industries – a company that would be a dominant computer to IBM until it’s fall in 1992.This Day in Tech History podcast show notes for October 21 the Electronic Communications Privacy Act goes into Law Windows NT 4 SP4 is released Jerry Yang send email to employees and 1,400 cuts