This may be a stupid question, but what the hell.
How can it be said that monitors all run at 72 or 100dpi - I thought dpi was dependant on resolution. How can a 17" monitor that is running at 800x600 be said to have the same dpi as a 17" monitor running at 1024x768 or more? Wouldn't a 1024x768+ screen have a higher resolution than an 800x600??
By the same token, wouldn't a 15" monitor running at 800x600 have a higher dpi than a 17" monitor running at 800x600? The 15" is diplaying the same amount of pixels but in less inches, thus it would have a higher dpi.
This is doing my head in. Please someone explain this to me!