circuit boards
Computer nerve centers
Circuit boards are flat panels that hold and connect electronic components.
The board itself is typically made of fiberglass with copper pathways etched onto it, allowing electricity to flow between components like chips, resistors, and capacitors.
Found in virtually all modern electronics—computers, phones, appliances—they're the physical foundation of electronic devices.
A printed circuit board (PCB) has its pathways printed or etched rather than wired by hand.
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