Hi there I am new around here and wanted to ask a question. Could anyone please tell me the difference between the following? 

Hi there I am new around here and wanted to ask a question. Could anyone please tell me the difference between the following? 

Here an explanation from w3.org :
“Buttons created with the BUTTON element function just like buttons created with the INPUT element, but they offer richer rendering possibilities: the BUTTON element may have content. For example, a BUTTON element that contains an image functions like and may resemble an INPUT element whose type is set to “image”, but the BUTTON element type allows content.”
Thank you very much 