what is the total difference of th animation component and animator component? and can u use both?

what is the total difference of th animation component and animator component? and can u use both? if you do use both is it a real problem or just not recommended etc?

hope to hear why cant use both in list bullets form of responses(easier this way

I tried using both and things worked but lot of tweaking was needed and im still not sure if it was extra work or not?

so when should you use the animation component and when the animator component?
tutorials don’t specify when and where 2 use each

really hope to get long detailed thorough answers here because this is a problem I want to really solve and learn which comp to use correctly

Just use the default that unity puts on your model (animator).

I think animation component is a legacy thing that only still exists to not break old projects imported to new unity versions. So both would be valid but 2 systems = 2x as much work, and legacy things eventually disappear, for example when unity 5 comes out you might wish you had used the new way.