What is slot ?

Expansion slots expansion slot definition computer EXPANSION SLOT An expansion slot is a socket on the motherboard that is used to insert an expansion card , which provides expansion slot function In computing, an expansion card is a printed circuit board that can be inserted into an electrical connector, or expansion slot on a computer's motherboard

expansion slot definition Over the years, you can find these expansion slots: PCI, AGP, AMR, CNR, ISA, EISA, and VESA, but the most popular expansion slot today is PCIe