I was visiting family when I was introduced to a coffee maker that uses barcode technology. The Bosch device below uses a barcode reader to decide how to prepare your coffee.
The coffee comes in small cups (similar to the K-cups we use at home), and the cups carry the barcode the coffee maker reads:
I had a latte, which is prepared differently of course than a cappuccino would be, but with the help of the barcode the coffeemaker can make both without user intervention.
Clearly we have moved into the age of having many computers per person – the coffee maker is a computer now!