What can Hashcat do? im a noob, please help me

[waterflows]

Hi, I am very new here. lets get started.

What can i do with hashcat? i know, hashcat can recover passwords, but what kind of password? media social password or what?

if i can recover my lost social media password, how can i do it?

and how can i get a hash of a password?

oh btw, i have amd fx 4100 and HD 7770, will this specifications get the job done?

i know, this questions are quite stupid, but i need a clear information.

thanks for your help and i'll appreciate it.
sorry for my bad english skill.

[radix]

https://hashcat.net/wiki/