The resolution of the photographs taken with a digital camera is measured in pixels. The greater number of pixels or dots per inch, the higher the resolution of the finished photograph will be.Digital cameras generally range from 2.0 megapixels to 5 and above. The next generation ofdigital cameras have higher and higher resolutions as consumers are looking for detail and color accuracy in their images. Older digital technology used under 2.0 megapixels.
Since film is not used in digital photography, the images are stored on internal disks in thecamera. Most mid-priced digital cameras do not contain very much storage space and this requires users to download their pictures to their computer before snapping more shots.
More memory can be added to the interior of the camera, just like in a computer. A less expensive method is to add memory by using a small card that pops into the camera. These disks can be purchased with capacities between 64MB all the way up to 2 gigabytes. Larger disks can can hold hundreds of pictures at their highest quality!