Question
Which of the following is an input device?
This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Mouse
Identify Computer Input Device
An input device allows a user to send data or commands to a computer. An output device receives data from the computer and presents it to the user.
Device Function Analysis
- Mouse: This points to items on the screen, clicks buttons, and scrolls. It sends position and click data to the computer. Therefore, the mouse is an input device.
- Printer: This takes digital documents from the computer and creates physical copies (printouts). It presents information from the computer. Therefore, a printer is an output device.
- Speaker: This reproduces audio signals from the computer, allowing you to hear sound. It presents sound information from the computer. Therefore, a speaker is an output device.
- Monitor: This displays visual information generated by the computer. It presents visual output from the computer. Therefore, a monitor is an output device.
Based on the function, the mouse is the only device listed that sends data and commands to the computer.
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