Deep inside the server rooms of hundreds of the world’s biggest businesses, mainframe computers built by International ...

When you think of mainframes, you probably have a mental picture from an old movie, with punch cards and a computer that takes up an entire large room. But the mainframe still lives, and is a viable ...

Introduced in 1954, the IBM 650 mainframe computer was among the first sold by that company, and was manufactured until 1962. It had three main equipment cabinets, the power unit (Type 655), the ...