What a lousy analogy. Old man obviously doesn't know much about computers.
I will say the "blank" motherboard, with the "empty" PCI, AGP, memory slots and unplugged AGP and various peripheral connectors, is Singapore. The CPU that is mounted on the mobo are the wonderful FTs. The diligent and resourceful migrant workers are the DRAMS, graphic cards, bridges, BIOS, heat sinks, etc on the mobo. Working together, they help the computer to churn along nicely as a whole.
As for Sinkies, they are the dustballs in the computer. They do nothing but choked up the performance of the entire motherboard and computer.