Abstract: A central processor for scientific-technica, economic-statistical computations, for solving the problems of modelling and control with the architecture of an extended instruction work comprises instruction data buffer memories 1 and 3, respectively, a control device 2, a data commutator 4, an arithmeticologic device 5, record-calling, indexing, associative memory, mathematical-to-physical address conversion, interface, subprogram device (6-11), as well as a control character device 13 and an operand readiness device 14, and provides high efficiency both on vector and scalar computations.