IBM has become a strong play on AI and quantum computing.Shares of IBM (IBM 0.89%) climbed after the company reported stronger-than-expected results for the fourth quarter and issued upbeat guidance. The stock is up about 35% over the past year, as of this writing. AI driving growthIBM's growth is being driven by artificial intelligence (AI). Customers are now using its mainframes to help run AI inference, while its watsonx software platform is being used for AI governance and Red Hat OpenShift is being dep ...