ISO is a totally different terminology altogether. Exposure is controlled by three main factors, ISO, Aperture and Shutter speed.
However, by toggling one of these settings, you get different effects too. By toggling ISO, you can increase (or decrease) noise and colour reproduction. By toggling the aperture, you could adjust sharpness and DoF.
You are the one who should read up before commenting and bashing people.
Even your earlier post stating Lumia 920's large aperture affecting it's capability to shoot objects far away is rubbish. It doesn't affect only far objects, but close objects too. And it is definitely not the factor that causes it to have "hazy images".
And... What is Electronic Image Stabilization (EIS)? - Definition from Techopedia