In my last post, I discussed Bill Gillis, then a Charles Schwab executive in charge of its technology division. Gillis came to Schwab from Mattel, the toy manufacturer best known for Barbie. In the early 1980s, Gillis oversaw Mattel’s efforts to compete in the video game console and low-cost computer markets with the Mattel Intellivision and the Mattel Aquarius, respectively. The Intellivision proved to be a modest success. The Aquarius, however, was such a bust that Mattel effectively pulled it off the market after just four months in 1984.