lesson no 2 computer science Kips answer for class 9
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Explanation:
Question 1.
Name the most commonly used input device.
Answer:
Keyboard is the most commonly used input device, which can also be used to type commands directing the computer to perform certain actions.
Question 2.
Explain the main advantage and disadvantage of an OCR?
Answer:
The main advantage of an OCR is the ability to scan the characters accurately.
The disadvantage of an OCR is limited number of characters offered by it.
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