Receipts scanner, a world to learn about
A business card is a faster way of providing contact details than having to narrate it out while another person manually stores it on a cell phone. It is still considered courteous to introduce oneself by means of exchanging business cards. But they come with the inherent risk of being lost. Data stored in digital form does not suffer from this risk. Despite that, manually transferring data for every contact you meet into your cell phone is much too tedious a task.