Your display adapter is what converts output from your computer
to a visable display and sends it to your monitor/TV.
Where you plug your monitor into the rear of your computer is
your display adapter. Some display adapters are hard soldered to
the motherboard, called "on-board adapter." Most, however, are
removable expansion cards that reside in your PCI, PCI-E, or AGP
slot, for easy replacement or upgrade.