They provide services. You are a big company and need a software system that can manage your oil refinery or factory - they make it. They do hardware, but much

They provide services. You are a big company and need a software system that can manage your oil refinery or factory - they make it. They do hardware, but much less than before. Their DB2 database is a big competitor to Oracle db. They do cloudlike services, but not as a public service available to anyone. Their competitors are Oracle, SAP and big consultancy firms. Think big budgets.