COMPUTER ARCHITECTURE
INPUTOUTPUT DEVICES
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 Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 
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 Which input device is used on a laptop, a tablet and a smartphone? 
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  A touchscreen 
 
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  A keyboard 
 
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  A pen 
 
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 None of the above
 
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 Explanation: 
Detailed explanation-1: -Touchscreen is mainly used in portable electronic devices like smartphones, tablets, and laptops on which touchscreen acts as a graphical user interface between devices and the user.
Detailed explanation-2: -Keyboard is the most common and very popular input device which helps to input data to the computer.
Detailed explanation-3: -A keyboard is one of the most important input devices. You can use it to input data into a computer or other electronic devices.
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