abstract boards circuit-boards color colored colors colour coloured colours communication components computer connected connecting connections decorated decorative devices distinctive electrical electricity electronic equipment fusible-metal-alloy gadgetry inside interlinked internal linked links metal miniature no-longer-in-use outdated part parts patterns permanently-bonded plastic plastics printed-circuits solder solidify surface surfaces unwanted useless circuitry complexity complx computer-hardware electronics lines recycling technology complex angles board chips circuit circuit-board cpu diodes disconnected dusty green microchip microprocessor mother-board numbered numbers panel perspectives printed-circuit processor small switches transistors Dirt dirty numerals old