Computers in a supermarket
by admin on Mar.09, 2010, under Uncategorized
Computers in a supermarket
Imagine going in 1979 and you. You work part time as a cashier in a big department store. When consumers spread their selected purchases on the counter, you should read the price of each purchase and enter it in the cash register. It happens that on some product price is not marked, and then you have to ask her at the controller. This, of course, slows down the calculations buyers …
Now back to our days. You still working as cashiers and in the same department. But how much has changed. When buyers are now spread their purchases on the counter, you will miss every one of them through an optical scanner that reads the universal code printed on the purchase. Universal Code – a series of dots and numbers on which the computer determines which product is the buyer, the price of this product is stored in computer memory and displayed on the small screen, the buyer could see the value of their purchase. Once all the selected items have passed through the optical scanner, the computer immediately displays the total cost of purchased goods. In this case, the final payment from buyers is much faster than using the cash register.