| a connection in a computer, esp. a microcomputer, to which a new board can be added to expand the computer's capabilities. |
| expansion slot n. A long narrow socket in a computer into which an expansion card can be inserted. |
expansion slot hardware
A connector in a computer into which an expansion card can be plugged. The connector supplies power to the card and connects it to the data bus, address bus and control signals of the motherboard.
(1998-06-26)
