Contrary to popular belief, the mainframe is not an old and obsolete technology. Big companies and government agencies keep using the mainframe because it’s a reliable and powerful platform that has been following the technological evolution.
As the video below demonstrates, IBM keeps investing heavily on the development of new and more powerful mainframes like the z13.
Technology from the 1960’s? That’s like saying that the latest Apple MacBook Pro is a technology from the 1980’s!