1. An integrated electronic circuit assembly forming an adaptive communications network with changeable connectivity pattern, comprising: an assembly comprising in the order of one thousand or more preprogrammed microprocessors each comprising: a radiant energy detector, a radiant energy source, an analog logical circuit, one or more switches, and a plurality of electrical interconnections; a common radiant energy data channel into which said radiant energy sources emit and from which said radiant energy sources absorb radiant energy signals; means for feeding external data into said radiant energy data channel; means for modulation of the radiant energy emitted by said radiant energy sources according to output codes assigned to each said microprocessor; means for demodulation of the radiant energy, absorbed by said radiant energy detectors, according to input codes assigned to each said microprocessor to provide decoded inputs which are functions of the aggregate energy in the radiant energy channel from plural microprocessors received by the radiant energy detectors; means for changing said input codes and output codes according to a rule which depends on the demodulated input of each of said radiant energy detectors; an array of one or more radiant energy power supply waveguides which simultaneously energize groups of microprocessors selectively to provide a changeable connecting pattern.