The image in your monitor is comprised of millions of pixels or "colored dots of light". the more pixels you have per square inch the better the resolution of the image. Your computer hardware will dictate what the maximum resolution you can attain.
resolution is expressed as the number of pixels across the screen, by the number of pixels down the screen. So 800 pixels horizantally, and 600 pixels vertically means you have a resolution of 800x600. Most common resolutions are a 4:3 ratio
(just like your 6x8 photographs)
If you try and view a large digital photograph on a low resolution setting, you will have to scroll around to see all of the image. Conversely, a small image on a high resolution monitor will appear small.
How do I know what my resolution is.
For MS Windows users, simply right click on your desktop and select "Properties"
Then choose the "Settings" tab.
In the middle of the window you will see the screen settings as shown below
The "Screen resolution" setting will tell you what your current selection is.
