FIELD: computer engineering. SUBSTANCE: data processing system has set of memory boards and at least one central unit for transmission and processing of data. Memory card and data processing unit together provide relational database. Each memory card is designed as read- only memory unit, which stores multiple instructions (A1, A2, An). Each instruction has logical relation to at least one another instruction. Device may be used for paid or user-subscription TV systems or other restricted access systems, for example, in bank transactions. EFFECT: facilitated data processing. 16 cl, 7 dwg
