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Историческую версию Pcb HD Wallpaper можно получить на Android
Pcb HD обои
A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCB can be single sided (one copper layer), double sided (two copper layers) or multi-layer. Conductors on different layers are connected with plated-through holes called . Advanced PCB may contain components - capacitors, resistors or active devices - embedded in the substrate.