To obtain a nerve cell computer capable of imitating information processing of living organism by arranging and linking excitable cells having specific properties or excitable cells and restrictive cells.

Cells (a) having threshold value lower than the input frequency, always generate action potentials in the input frequency range. The threshold value of the cell 107e and 108i are each set higher than that of 103e and 104i. The nerve cell computer like this, is a computer processing the information of a time-series of an optional frequency range, carries out various arithmetic processing, capable of obtaining out puts such as AND out put, OR out put, XOR out put, and NOT (1) or NOT (2) out put.