Eksempler på cash register

• Since a cash register may be regarded as a cognitive system, it must be studied at three different levels.

• For a cash register, everybody knows the answer: the properties of addition correspond to the logical constraints of exchange.

• Consider now the second question: why does a cash register add the prices of the various purchases?

• At the computational level, two questions must be answered: what function does a cash register compute and why does it compute this function?

• Thus, while old-fashioned car might be listed enough to account for toy old-fashioned car, no such excuse can be made for toy old-fashioned cash register.

• The shopper has to deal with a girl at the cash register as she is going out of the shop with her wire tray.

• Each time the transaction occurs the cash register rings.

• We shall be watching like hawks to see that they do not start ringing up the promises on the cash register again.