No, not since I was a teenage employee at McDonalds, and doing the arithmetic with a pencil. The next summer I saw my first computerized cash registers. But the

No, not since I was a teenage employee at McDonalds, and doing the arithmetic with a pencil. The next summer I saw my first computerized cash registers. But then I was a stockboy and had nothing to do with the point of sale. (Summers of 1972 and 1973.)