What is difference between 'name card' and 'business card'? What about a name tag?
I think of a name card as a way to tell people where to sit for a big or formal dinner. That's also known as a place card.
A business card has the person's name plus then company he/she works for and contact information: address, phone numbers, email address.
A name tag is what a person wears at a meeting or other function so others will know his or her name.