pci express or AGP
An AGP video card.
AGP Video card AGP retention mechanism = AGP Video expansion card
A slot card is a modular expansion card, which can be inserted into a free expansion slot in a PC computer. Most popular types of slot cards are graphic cards, sound cards, TV tuner cards and video editing cards.
it lets you add a sound,video card, wifi card ,things of that nature
expansion slot
The now obsolete AGP slot was used solely for video. The current slots used for video, the large x16 PCIe connectors, can also be used for general PCIe expansion cards. Sitting in shelf above my head, I still have some PCI and ISA slot video cards: using a general-purpose expansion slot for video is the standard way, and a dedicated graphics expansion slot was a short-term abberation.
I believe you can get PCI, PCI-X or AGP video capture cards. Each card would need the corresponding slot, such as an AGP card would require an AGP slot.
Expansion Slot is just like port into which expansion card can be inserted. In otherwords port is female and card is male.
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.
AGP = Accelerated Graphic Card
Take a look at your system motherboard to see if it has an AGP or PCI Express card slot (it will be the topmost expansion slot on the motherboard--your monitor should be connected to the card currently sitting there). This will tell you which type of video card is available to you.
no no really