The sockets on the outside of a computer that plug into an expansion card are called ports. Depending on the expansion card, there can be a variety of ports including USB, audio and network ports.
The socket you are referring to is most likely a PCI-E slot. The standard PCI-E 16x slot on most motherboards fits that description, and is usually where a graphics card is inserted. They can be shorter or smaller however, e.g. PCI-E 1x or standard PCI, which are usually used to accommodate network cards/adapters.
yes, its what enables the video card to be attached to the motherboard if I understand your question right
The expansion slot is the socket on the motherboard that can hold an adapter card. There are different types of expansion slots (pci, pcie, pciex16) so you need to check that the expansion is the same kind as the adapter card.
Expansion cards are generally installed in PCI or PCI-e slots on the motherboard, although it would depend on which type of expansion card you are referring to.
expansion slot
Its not installed to windows, its placed into the motherboard
In most designs, the CPU is located on motherboard, not on an expansion card.
A discrete device/component is not installed directly on the motherboard. See Discrete Graphics Card.
location on the motherboard into which a controller card for a peripheral device is stored
NO my dear
System Unit
No the system clock is built into the motherboard.
The expansion card