Yer not dumb, man, just ignorant of these things, and the pieces aren't falling into place when I tell you straight stuff.
We're talking about hardware, so the general names of those things are what we need to look under. When I was curious about video cards, I Googled them. Wiki (note, W versus w) was a top result, and I learned about video cards. I then thought, "video card standards", "video display", etc. I had no idea the relationship between resolution and.....other things......I didn't know those other things, even. And I didn't understand some of those things right off. I did evenutally, though.
Helps to have different kinds of hardware to play with, but isn't necessary.
The simplest two questions to ask (that a scientist asks) are:
- what is possible? - what does my hardware do?
- what isn't possible? - what doesn't and can't my hardware do?
UPdate: actually, the second one is generally better, because finding what isn't possible usually tells us what is.