These days, digital camera especially consumer or compact digital camera have new rival and competitor.
At the beginning, this competitor was not imaging device at all,no one imagined that this gadget in the future would become serious competitor for digital camera and even analog camera.

Time goes by n rite now,this device has been evoluting into multiple purpose gadget. With this device, you only not able to capture image but even video! and with PIM feature that added lately, you dont need a secretary anymore.base feature from this device is a communication gadget,yes.. I am talking about mobile phone.
No doubt these days, mobile phone or cellular phone is very dangerous rival for camera or digital camera vendor. But since the use of analog camera has became less these days, i will focus only to digital camera.

Naturally, we don't like carrying many things in one hand when mobile. What we want is one thing that could handle everything. And people point to mobile phone for that thing. First, it's only a device with voice conversation only, and slowly but sure, it could handle text massage, then when the first lens installed to mobile phone (even it's quality was dissaster :D ), that is the day people realize that mobile phone could turn into camera!

since then, every mobile phone vendor race to install camera feature for their products to attract consumers. And when 3G technology had arrived,this lens is not just one installed,but 2! One for video call and other for capture moments.

How about digital camera? nothing has changed since analog hit by digital camera appearance. And now, we may say that analog camera is about to become history, defeated by many advantages of digital camera that couldn't offered by analog camera, such as:compact size, no more film roll, shoot with no worry run out film, and so on. digital camera decrease operational budget dramatically and increase productivity also dramatically.

Digital camera uses pixel resolution for image size, and it associates to the file size, the more high resolution you set, the bigger file size come.