What is Aperture and Where is it located?
Aperture is in the lens of the camera and it adjusts the amount of light that reaches the sensor. The button to adjust this from large opening to let in a lot of light to small opening to let in minimum light is above the video recording button.
What is the Shutter and where is it located?
The shutter opens and closes to let light strike the light sensitive surface inside of the camera lens. The shutter button is the same one used to take pictures.
What is ISO and where is it located?
In digital photography ISO measures the sensitivity of the image sensor. The lower the ISO number the less sensitive your camera is to light. 100 ISO is generally the normal to get crisp pictures. To change ISO press the up arrow and select what ISO you want.