I.B.M. Mainframe Evolves to Serve the Digital World - NYTimes.com

Interesting to see this juxtaposed with the Amazon cloud snapshot

"The death of the mainframe has been predicted many times over the years. But it has prevailed because it has been overhauled time and again. In the early 1990s, the personal computer revolution took off and I.B.M., wedded to its big-iron computers, was in deep trouble. To make the mainframe more competitive, its insides were retooled, using low-cost microprocessors as the computing engine.
Like any threatened species that survives, the mainframe evolved. It has been tweaked to master new programming languages, like Java, and new software operating systems, like Linux."

I.B.M. Mainframe Evolves to Serve the Digital World - NYTimes.com