Do shaders go on every pc?

I planned to take my brother's old pc and play minecraft on it. The pc is already older and I want to get shaders, will minecraft completely hang then? Otherwise I'll have to buy a new one.

lg and thanks in advance

In principle, shaders work on any PC. But not every PC can do it.

There are shaders, but for bad PCs even they need a lot of power.

Thanks for the answer. How do I know how much power the pc has? Can you find out without trying?

No, you have to test that to see if it works.