1. An electronic device comprising an electrodes arrangement of one or more basic units, the basic unit being configured to define at least one vacuum space for free charged particles' propagation and comprising an input assembly for supplying one or more input signals, and a floating electrode assembly accommodated proximal said input assembly and serving for reading an output signal therefrom, the floating electrode assembly comprising at least one source electrode of the free charged particles and at least one target electrode for receiving the charged particles that are directed thereto from the source electrode, the at least one target electrode being a floating electrode and being chargeable and dischargeable in response to the input signal thereby creating the output of the basic unit.