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Old 02-16-2020, 09:49 AM
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septimus is online now
Join Date: Dec 2009
Location: the Land of Smiles
Posts: 21,131
It wasn't too very long ago that if you logged into some computers using an all-caps user-name, the O.S. assumed that your terminal could not produce lower-case letters, and converted ALL your input from then on to lower-case. (There was some escape mechanism to enter actual upper-case.)

I'm not sure any OSes still do that in 2020.