How mainframe can regain its supremacy?

I could say mainframes are definitely regaining their relevance to medium and large businesses. Mainframes are clearly the most efficient and scalable form of computing, from a hardware cost, an environmentals / power viewpoint, and from a systems management perspective. Mainframes have offered the ability to have one machine do the job of multiple computers. Mainframes are more efficient and sport utilization rates of more than 80%. PC-based servers, on the other hand, generally have utilization rates around 15%. The new mainframe is positioned as a corporate supercomputer that will run Linux, web-based programs, data mining processes, and business intelligence systems.....