Camera - definition
Camera is a sensor which detects the incoming lights and reflect it on it’s image sensor and using the image processing algorithm it can generate a complete photo frame. In all smart phone, there may one or more than one/multiple camera can be found. Nowadays, in one mobile device even 4-5 cameras can be found, every types of camera has different purposes depending on the needs. i.e.: Macro camera, telephoto, depth sensor, prime, main camera etc.