Unlike the normal cameras that use a film roll to capture the images, Digital Cameras use a digital medium to capture the images thereby making it possible to directly transfer to the computer with higher image clarity. Traditional cameras using film rolls limit the number of shots to 36, but digital cameras allow upto 160 images at high resolution. Also the digital medium, often a Floppy disk, a Flash memory stick, and even a CD- Rewritable can be used again and again. Digital cameras use a Charged Coupled Device to capture the images and then transfer it to the digital medium.
Though there are many companies like Sony and Hitachi manufacturing Digital Cameras, they have a long way to go till they are more widely accepted. Digital Cameras available now do not have higher zooms available to normal cameras and also the cost of a good digital camera far exceeds the price of an equivalent camera thereby making them very expensive.