merger of Dell and EMC US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition Computer World merger of Dell and EMC US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition US$67 billion acquisition merger of Dell and EMC US$67 billion acquisition pending $67 billion merger merger of Dell and EMC US$67 billion acquisition