Ian
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I was doing some reading on Wikipedia this morning and found out something quite interesting:
It's perhaps not as surprising that it's possible to visualise a really old mainframe, but I am surprise that there are still systems operating that would require 50+ year old software apps to run. I guess if it works, it works .
The IBM Z family maintains full backward compatibility. In effect, current systems are the direct, lineal descendants of System/360, announced in 1964, and the System/370 from the 1970s. Many applications written for these systems can still run unmodified on the newest System z over five decades later.
It's perhaps not as surprising that it's possible to visualise a really old mainframe, but I am surprise that there are still systems operating that would require 50+ year old software apps to run. I guess if it works, it works .