Once you determine your usage, you can begin your search. Memory A digital camera has flash memory cards built into each unit that can hold a certain amount of data, depending upon what resolution you choose to take each picture. The problem of maximizing memory capacity leads us to another issue. Once the memory fills up, you have to download it to your PC before you are able to start capturing images again. A few ways to solve this limitation is to lug your PC around with you or purchase a camera with removable memory cards that can be downloaded at a more convenient time.
Memory cards are similar to rolls of film that can be removed and replaced when full.
CompactFlash, MiniatureCard, and SmartMedia are a few memory cards that can be easily purchased. These cards are also reusable and generally have about 2MB of memory, which can hold around 36 medium-quality images. If buying memory cards is too much additional cost, look for cameras that already have a large internal memory capacity, or for one that has a LCD display so that you can pick and choose your shot frugally. One very useful feature that some cameras have is a LCD display that allows you to view captured images taken immediately afterwards. The benefit of this is if you didn't take the photo the way you intended to take it, just erase it and start again.