Technology July 15, 1990 CRAY RESEARCH PRESIDENT AND CHIEF OPERATING OFFICER RESIGNS By CBR Staff Writer Cray Research Inc president and chief operating officer Marcelo Gumucio his resigned after differences over style with chief executive, John Rollwagen, who will assume the additional posts for now. Content from our partners The hidden complexities of deploying AI in your business When it comes to AI, remember not every problem is a nail An evolving cybersecurity landscape calls for multi-layered defence strategies CBR Staff Writer CBR Online legacy content