IBM CEO Ginni Rometty stepping down after nearly 8 years at helm

Ginni Rometty is stepping down as CEO of IBM Corp. after nearly eight years at the helm of Big Blue and four decades at the computer giant. Arvind Krishna, the company’s cloud and cognitive software chief, will take her job on April 6. Rometty will remain as executive chairman through the end of the year when she plans to retire. Red Hat CEO Jim Whitehurst will be the new president IBM, which bought his open-source software company for about $33 billion last year. Krishna was credited with being…