AT&T was big on getting rid of the "mainframe" from operations when I was there in the 90s. The argument was that PCs were becoming more powerful and could handle the same tasks.
My question was "So a PC can handle the thousands of actual physical inputs that a mainframe can handle?" with the argument "As PCs progress, so will mainframes. Just because you think a mainframe is a PDP 11/34a, that doesn't mean it's going to be that way - and isn't - now."
There were no answers. This was at the same time Plan 9 from Bell Labs - a client/server system akin to mainframe operations - was being touted as the next UNIX that's more UNIX than UNIX.
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