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Qus: Trackball is a

Qusट्रैकबॉल एक है

A. इनपुट डिवाइस
B. आउटपुट डिवाइस
C. प्रोग्रामिंग लैंग्वेज
D. सॉफ़्टवेयर


Solution
A. Input device



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