What is different between a baby food grinder and food mill?

What else do you need to make home baby food besides food grinder? How do you steam it? Do they sell the thing for steaming baby food? And storage?

If it possible, Could you list everything we need to have to make baby food?

My baby is only 3 months , i don’t mean to feed him now but i love to know all the tips to make him food by myself. I’m 1st time mom can’t wait till i feed him solid food n so excited

Thanks!