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 An evolving cybersecurity landscape calls for multi-layered defence strategies Powering AI’s potential: turning promise into reality Unlocking growth through hybrid cloud: 5 key takeaways CBR Staff Writer CBR Online legacy content