Abstract: The present invention refers to a device for storing and retrieving one or more binary digits or for increasing persistence time of memory storage for one or more binary digits through Stochastic Resonance, comprising: a. a circuit with at least one bistable element; b. means for introducing an input signal into the circuit; c. means for introducing an adequate amount of noise signal into the circuit and/or means for adjusting the thresholds of the bistable elements and/or means for adjusting the output levels of the bistable elements, whereby the input signal, added to the noise signal, surpasses the transition thresholds, and d. means for detecting the output signal state. The invention is based on the surprising fact that it is possible to store one or more binary digits in a system capable of using existing and inevitable noise in the system advantageously for storage purposes.