Old mainframe computers are interesting, especially to those of us who weren’t around to see them in action. We sit with old-timers and listen to their stories of the good ol’ days.

Mainframes continue to be used in sectors including banking, insurance, retail, and government. “For large financial services organizations that must process millions of transactions per second, … the ...

We miss the days when computers looked like ... a “mini-mainframe simulator.” The device would look at home on the set of any old science fiction movie. Externally, it has 540 LEDs, 100 ...

The industrial-strength mainframe computer, invented decades ago for heavy ... They are also unwieldy—with years of old code ...