Maybe you noticed that I was on vacation. And even with almost no laptop/emails and not too many job-related thoughts, a database or IT guy is (almost) always seeing the infrastructure behind.
In the evenings we were enjoying (pre-ordered) 4 course dinners in the hotel restaurant. For the drinks, the waiters used a wireless handheld terminal. With few clicks on the touchscreen an order for my Hefeweizen was created, the order printed at the bar, the beer added to the sales records, and it also got charged to our room. All this is interesting, but who really cares about transactions when a fresh, cold Hefeweizen is arriving after a long day of hiking?