Computer trackball and keyboard. View of an Apple Powerbook computer,showing the trackball (mouse device) and part of the keyboard. Like the hand- operated mouse of other computers,the trackball is a more compact version used in small handheld or laptop computers. As the ball is rotated,electronic detectors pick up the ball's movements and translate them into corresponding movements of a pointer or other icon on the computer screen. The trackball makes it possible for novices to use computer programs without having to enter complex codes on the keyboard | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hayson, Phillip |
Bildgröße: | 4654 px × 3106 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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