What makes IBM a hidden AI leader? See how this tech giant is shaping the business-class AI market.You might not think of IBM (IBM -0.92%) as an artificial intelligence (AI) expert. The tech veteran is famous for its early PC computers, business-critical mainframes, and unmatched portfolio of consulting services. But IBM is never the first name that springs to mind in the AI conversation.That perception should change very soon. The company has been a quiet AI leader for decades already, betting a large chun ...