Microsoft to go mano-a-mano against IBM in large-business computing

Ever since the dawn of the info era more than 50 years ago, IBM (IBM) has been the 500-pound gorilla in large-business computing -- supplying technology and services to coordinate communications, process transactions, and manage information. Well, another big gorilla just charged into IBM's jungle. Microsoft (MSFT) Chief Executive Steven Ballmer on Mar. 16 laid out his vision of an expanded role for his company in the $1 trillion business-computing market