নিম্নের কোনটি একটি ইনপুট ডিভাইজ-
সমাধান
সঠিক উত্তর: Option D
In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks.