Which device is used to input data into a computer?

A keyboard is a basic input device used to enter data into a computer. It allows the user to type text, numbers, commands, and symbols directly into the system. Each key on the keyboard corresponds to a specific character or function, making it one of the most essential tools for interacting with a computer.

 Keyboards are used in almost every computer-related task — from writing emails and documents to entering commands in programming or performing searches online. When a key is pressed, the signal is sent to the computer’s processor, which interprets it as data input.

Let’s briefly understand the other options:

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  Monitor: This is an output device that displays visual information to the user. It does not send data into the computer.

  
  


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  Printer: Also an output device, it takes data from the computer and prints it on paper.

  
  


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  Speaker: This outputs sound and audio; it does not input information into the computer.

  
  

In contrast, the keyboard directly enters data, which is why it is classified as an input device. Other common input devices include the mouse, scanner, and microphone — but in this question, the correct and most fundamental input device listed is the keyboard.