vCard and QR Code

vCard is an old standard.  It is a way to represent the contact information.  It is a digital version of a  business card.

When you receive a business card, you probably want to enter the data into your cell phone.

This is where the QR Code comes in.

QR Code is a way to get information into your phone.  Nowadays, phones almost all have the camera capability.  QR Code is a way to let you take a picture of the bar code and to scan the bar code into your phone.  One image can contain a lot of information.

Combining QR Code and vCard allows you to pass the information from the business card to your phone, without manually typing those information.

See also:
How to create a business card QR code
6 Good Reasons to Add a QR Code to Your Business Card