One of the biggest names in the tech industry is making headlines, not for processors or PCs, but for philanthropy. Michael Dell, whose eponymous company helped usher in the digital age, announced that he and his wife, Susan, will contribute a portion of their vast wealth to expand a pilot program designed to give America’s children a head start in investing for their futures — but just how vast is that wealth, exactly? Here’s a breakdown of the Dell family fortune. How Rich Must You Be To Give 25 Milli ...