abstract boards circuit-boards circuitry colored colors coloured colours communication complex complexity components computer computer-hardware connected connecting connections devices distinctive electrical electricity electronics equipment fusible-metal-alloy gadgetry inside interlinked internal lines linked links metal miniature no-longer-in-use outdated part parts patterns permanently-bonded plastics printed-circuits recycling solder solidify surface surfaces technology unwanted useless art board circuit-board color colour decorated decorative electronic plastic psychedelic-colors psychedelic-colours