![]() It uses optical character recognition techniques to convert images into digital ones.Ī joystick is also a pointing input device like a mouse. ![]() The scanned picture or document then converted into a digital format or file and is displayed on the screen as an output. The scanner uses the pictures and pages of text as input. A mouse is connected to a computer through different ports depending on the type of computer and type of a mouse. Modern mouse devices come with optical technology that controls cursor movements by a visible or invisible light beam. Early mouse had a roller ball integrated as a movement sensor underneath the device. Some mouse comes with integrated features such as extra buttons to perform different buttons. It lets you control the movement of cursor or pointer by moving your finger over the touchpad. ![]() Laptop computers come with a touchpad that works as a mouse. It is designed to be used on a flat surface and generally has left and right button and a scroll wheel between them. The mouse is a hand-held input device which is used to move cursor or pointer across the screen.
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