[JAA1337]

I would respectfully ask for someone to show me EXCLUSIVE UPPERCASE code which was not assembler, fortran 77, nor cobol.

[marssaxman]

Your list omits BASIC, much of which looked like this:

https://github.com/coding-horror/basic-computer-games/blob/m...

[simonblack]

Up until about the 80s, lowercase capability was a very expensive optional-extra in I/O computer equipment.

So any language/program/data-entry used in the 30 years before about that era will be (almost) exclusively UPPER-CASE.

[adamrezich]

I EXCLUSIVE UPPERCASE SQL, not really sure why, just find it more readable