9 Downloadable programs for computers and software for microprocessors for reading of chips and the modification and exchange of data and for the securing of data in the field of payments, finance, telephony, transport, access control, electronic identification, retail and gift card, all to facilitate communication between hand-held electronic devices; encryption and decryption programs for computer data; electronic liaison between a computer and a communication network, namely, electronic card, flash card, and optical readers; downloadable software for the management of databases; interface cards with integrated circuits for communication; interface modules for communication, namely, integrated circuit modules, memory expansion modules, and rectifier modules for the exchange of data; data converters, namely, data processing equipment, central processing units for processing data; chips, namely, integrated circuits; computer chips, namely, contactless interface chips in the nature of radio frequency identification (RFID) chips, semiconductor chips, and silicon chips; microcircuits for coding and decoding data; printed circuits; semiconductors; central processing units; microprocessors; microcontrollers; electronic tags, namely, electronic security tags for controlling access, electronic tags for the management of stock, electronic tags for traceability of goods, electronic tags for protection against theft; chip cards, namely, blank electronic chip cards, encoded electronic chip cards containing programming for reading, writing, controlling, exchanging and modification of data for use in the field of payment, finance, access, control, transport, ticketing, electronic identification, retail and gift card and mobile communication fields for use with smart cards, key fobs, mobile phones, handheld consumer electronic devices, point of sale displays and PC peripherals, memory cards, electric and electronic locks