the.com/uppercase
the font size of shouting, since typewriters had no volume knob.
means the capital form of a letter, used to start sentences, mark names, or yell on the internet.
from from letterpress printing, where capital letter blocks lived in the upper drawer of a type case and small letters in the lower one.
printing originnamed for physical drawer position, not grammar
all caps onlinereads as shouting since early usenet forums
german nounsevery noun gets capitalized, always
camelcase cousinprogrammers borrowed the idea for variable names
for instance
e e cummings — poet who rejected uppercase almost entirely, even his own name
nasa all caps memos — 1960s teletype machines only printed uppercase letters