The answer to this question would be algorithm animation.
Since the algorithm is animate, then you will be able to watch it works. Watching the algorithm executed can give you much information, what the algorithm does and how the algorithm does it. Normally you will not be able to do this since the algorithm only do what it needs to do without reporting the detail to you
Usually a graphics card would be plugged in manually through a PCI-e express slot on the motherboard. But to give the card enough power (based on how powerful the card is) you would use a 6 pin or an 8 pin power connector. <span />