In pictures: The (mostly) cool history of the IBM ...
In pictures: The (mostly) cool history of the IBM mainframe
IBM's iconic mainframe turns 50: In its history the IBM mainframe has been hailed and vilified. It has been born, reborn (many times) and pronounced dead. And yet the Big Iron remains a key computing resource for many large companies and will do so for many years. Here we take a look at the mainframe’s long history, from its use with the US space program to its prominence inside large business datacentres. Take a look.
Here we see the S/360 the Model 91 installed at NASA's Goddard Space Flight Center in Greenbelt, Md., was, in 1968, the most powerful computer in operation. It could perform up to 16.6 million additions a second.