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MOST USELESS SUBJECT?

i can tell
its computers' theory section
only practical is enough but they need to make it difficult somehow right?!

For everyone they find some subject not useful for them cuz their passion doesn't line up with it, but that doesn't necessarily mean it's useless. Like some might think chemistry is useless cuz they won't use it in real life but it has very important use in material science and stuff. So if you look at it that way, it heavily relies on perspective.
But if we're speaking in general, from the main subjects I think history is the least useful. It's barely used in any fields and it's only contribution to society is a "oh look that's cool" Sunday Museum visit. Historians and archeologists spend their whole lives searching for random relics which has literally no purpose other than being put in a glass cage and torturing high schoolers with random years.

but theory should not be there in computer science just practical is enough
like y do we need to learn what is dbms and what r its advantages?
y????
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