Document scanner and the stuff nobody tells you
Of course, optical character readers are a dime a dozen nowadays, and even handwriting can be converted into digital format with a high level of accuracy. But what sets the business card reader apart from them is the fact that not only does it detect the data, it also analyzes and processes it and files it under the appropriate fields without any human assistance. It is clear that business cards serve very little in the way of practical purposes anymore. In fact, if the relevant information is previously stored on a cell phone, it can be messaged effectively to create a comprehensive contact listing on another's phone as well. But practicality is not the only consideration here; its importance stems from its status as a courteous social custom.