1. A quantum reservoir computer, comprising: a plurality of nodes comprising chromophores, each node comprising at least one quantum degree of freedom that is coupled to at least one quantum degree of freedom in each other node, wherein the quantum degrees of freedom comprise electronic excitation states; at least one input signal generator comprising a laser, wherein the input signal generator is configured to produce at least one time-varying input signal that couples to said quantum degree of freedom, the time-varying input signal selected from a time-varying change in laser pulse frequency, a time-varying change in laser light frequency, and a time-varying change in laser light intensity; and a detector selected from a photodetector and a spectrometer, the detector configured to receive a plurality of time-varying output signals that couple to said quantum degree of freedom, the time-varying output signals selected from a time-varying change in light frequency and a time-varying change in light intensity.