1. A physical neural network based on nanotechnology, said physical neural network comprising: at least one neuron-like node that sums at least one input signal and generates at least one output signal based on a threshold associated with said at least one input signal; and at least one connection network associated with said at least one neuron-like node wherein said at least one connection network comprises a plurality of interconnected nanoconnections, such that each nanoconnection of said plurality of interconnected nanoconnections is strengthened or weakened according to an application of an electric field, thereby providing.