COMPUTER FUNDAMENTALS

Detailed explanation-1: -For the majority of photographers out there, the megapixel war is a marketing one between manufacturers, and that has little to do with you. A camera with 10-20 megapixels is going to, in most cases, be more than capable of meeting all your needs.

Detailed explanation-2: -A 8 megapixel camera captures 8 million pixels, and a 12 megapixel camera will capture 12 million pixels. Most phone cameras today offer 12MP.

Detailed explanation-3: -The best image resolution for most smartphones is 640 by 320 pixels, although you should ideally maintain the aspect ratio of the original image or the output image will be distorted.