background board chalk chalkboard classroom communication dirty education green green board green chalkboard grunge grungy learning school schoolboard smeared surface teaching texture vintage wiped circuit circuit board component connections electrical electronics lead printed solder wires backdrop bench boards copy cracks lumber natural plank planks playground sand sandbox space timber wood wooden bricks frame wall art branch brown butterfly door insect Natural material notice board orange organism paint peeling paint pollinator trunk wallpaper weathered woody plant yellow black standing cutting board food fresh garnish herb parsley plant spice cutting knive nobody plant angles chips circuit-board colored coloured components computer connected cpu diodes disconnected dusty equipment gadgetry inside internal linked links metal microchip microprocessor miniature mother-board numbered numbers panel part parts perspectives plastic plastics printed-circuit processor small surfaces switches technology transistors chip electric future futuristic hardware memory spare parts tech vector
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