Joystrick & Scanner
Joystrick & Scanner
Joystick is a small vertical stick attached to a trackball for easier mechanical movements. It is used mainly in game programs.
Scanners
Scanners are direct-entry input devices. As the data entry is automatic, the scanners ensure more accurate data entry. These scanners include optical scanners and magnetic ink character readers. The optical scanners use light for sensing input and they include OCR, OMR and Barcode reader.
