Do you know whether they are input or output?
If its input, then you'll be able to play video games.
If its output, then you'll be able to put your computer screen on the TV.
I'm guessing this is through some sort of TV Tuner or graphics card, so then its most likely input. Its also unlikely that its output, because they tend to use S-Video for that. You probably should have some sort of software that came with your computer or if you bought the tuner/gfx card seperately that came with that. You should be able to use that program to play your console system using the A/V.