Surely you have ever heard such a funny-sounding abbreviation as POS. Do you know what it means? POS - the so-called point of sale, which most often means an automated cashier workstation equipped with a hardware and software complex (POS terminal) or purely hardware (POS system), which includes various component modules integrated together. In simple words, this is a device for accepting payments by bank cards and devices with the possibility of contactless payments. Now you know that POS is what we deal with almost every day of our life. And it reminds me how happy we are that we were born in a time of technological progress, when you don't have to carry around a huge wallet full of heavy coins, and to pay anywhere you only need a small card. In addition, if necessary, each of us can easily learn how to create a pos system on our own!