Architecture for generating responses to search engine queries. The supporting structure includes a shutter opening and closing mechanism having a shutter element that is movable along a fixed direction to open and close the toner feed aperture. The aggregate is shaped as a one-dimensional or two-dimensional body. An extendable-and-retractable neck mounting for a transducing-element head thereon, for activating-deactivating the transducing-element, and moving the head to hold an orientation so as to illuminate a region-of-immediate-interest or a particular target. Select emitters of the MUs are activated to transmit a further edge pattern based upon a further inter-device communication such that when a corresponding sensor of the first MU receives the further edge pattern from the second MU and vice versa, the aligned edges are verified to be aligned. The computer readable text is also displayed, overlaid the original image, wherein the computer readable text is aligned with the corresponding imaged text.