I dont understand why do we need <form>?

Question

I dont understand why do we need <form>? Everything seems fine with only <input> without form…

Answer 1

<form> is for submitting HTTP Request to the server for processing.

You will understand the use of <form> when you proceed to backend development.

Answer 2

For me, form is usefull to manipulate the form container with CSS. Besides, it plays a vital rule in term of SEO. Search engines could determine that it's a form if you use form tag.

Answer 3

Gordon are you a backend programmer?
please give me some backend codes