The name dataphone, wrongly called TPV, is given to the equipment installed in commercial establishments, service companies, banks, hotels, airlines … so they can conduct electronic transactions with cr cards or bank debit. A history of the use of this equipment goes back to the 1970s. At present, these terminals can also be wireless and ampliamaente use is widespread in all types of establishments: restaurants, gas stations, etc., And that streamlines operations and provides security for sale to both customers and service providers. Software has been developed according to the needs of each type of trade and updates are constantly emerging from both hardware and software.