Transactions system comprising terminals and memory cards and corresponding memory cards

摘要

The method involves temporarily placing memory cards in a master mode during starting of transaction, where the cards determine type of transaction to be performed. The cards determine their operation mode i.e. master or slave mode according to the type of the transaction for performing the transaction. The card in master mode passes into slave mode and vice-versa during the transaction. - Independent claims are also included for the following: - (A) a terminal -memory cards assembly - (B) an application program adapted to be executed on a memory card for performing communication method.