Thoughts on IBM 360

"The 1967 IBM System/360 Model 91 could execute up to 16.6 million instructions per second. The larger 360 models could have up to 8 MB of main memory though that much memory was unusual; a large installation might have as little as 256 KB of main storage, but 512 KB, 768 KB or 1024 KB was more common. Up to 8 megabytes of slower (8 microsecond) Large Capacity Storage (LCS) was also available for some models. "
[Wiki]
A Raspberry PI PICO could outperform that.
A Pi Zero certainly could.
"Application-level compatibility (with some restrictions) for System/360 software is maintained to the present day with the System z mainframe servers. "
COBOL for a PI! It has to make sense...with a hundred PCS telnetted into it for data entry...
There are a few 360s still around in museums or the hands of enthusiasts
http://www.ibmsystem3.nl/System360/
--
"I am inclined to tell the truth and dislike people who lie consistently.
This makes me unfit for the company of people of a Left persuasion, and all women"