The resolution of a camera sensor refers to the number of pixels it contains, typically denoted as width x height. For example, a camera sensor with a resolution of 4000 x 3000 pixels would have a total of 12 million pixels, or 12 megapixels. The resolution of the camera sensor directly impacts the level of detail and clarity captured in an image. Higher resolution sensors can produce sharper images with more detail, while lower resolution sensors may result in more pixelated or grainy images. It is important to consider the resolution of the camera sensor when choosing a camera for specific photography needs, such as high-quality prints or detailed image editing.