Which kind of devices allows the user to add components and capabilities to a computer system?
A
System boards
B
Storage devices
C
Input devices
D
Output devices
E
Expansion slots
Correct Answer: Expansion slots
In computing, the expansion card, expansion board, adapter card or accessory card is a printed circuit board that can be inserted into an electrical connector, or expansion slot, on a computer motherboard, backplane or riser card to add functionality to a computer system via the expansion bus.Source : wikipedia.org