close up printed circuit board with components

background board caces capacitor capacitors carrier cases castellated chip circuit circuits close closeup communication component components computer computing conductive conductor connect connected connection cpu crystal design detail devices digital dots dual electrical electricity electronical electronics engineering equipment flat gull hardware high hole industrial industry information integrated interior internal leaded leads macro mainboard modern motherboard mounted oscillatorn pack package part paths pcb plastic printed processor science semiconductor semiconductors smd smooth socket soldered soldering surface system technology telecommunications transistors