Computer · Hardware Devices
निम्नलिखित में से किस इनपुट डिवाइस में एक छोटी ट्यूब में फोटोसेल और एक ऑप्टिकल सिस्टम लगा होता है?
- 1लाइट पेन (Light pen)✓
- 2ट्रैकबॉल (Trackball)
- 3माउस (Mouse)
- 4जॉयस्टिक (Joystick)
सही उत्तर देखें
लाइट पेन (Light pen)
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