A trackball is a type of pointing device that converts drawings and other graphic images into digital data in order to enter it into a computer system.

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A trackball is a pointing device used to control the cursor on a computer screen, similar to a mouse, but the user rolls a ball housed in a socket to move the cursor, rather than moving the entire device. It does not convert drawings or graphic images into digital data; that function is typically performed by a graphics tablet or a scanner.

A Trackball Is a Type of Pointing Device That Converts