Question

Which of the following is an input device?

• A. Printer
• B. Monitor
• C. Keyboard
• D. Speaker

Hint:

Mouse, keyboard, scanner are input devices.

Answer 1

The Correct Option is C

To determine the correct answer to the given question, we need to understand the basic functions of input and output devices in computer systems:

• Input Device: An input device is a hardware component used to provide data and control signals to a computer. It enables users to interact with the computer by inputting data, commands, or instructions.
• Output Device: An output device is a hardware component used to receive and display or reproduce the data from the computer. It communicates the processed data to the user or another device.

Let's analyze each provided option:

1. Printer: A printer is an output device. Its primary function is to provide a hard copy of digital documents. Therefore, it is not an input device.
2. Monitor: A monitor is an output device used to display images, videos, and text. It does not send data to the computer but instead receives data from it. Hence, it is not an input device.
3. Keyboard: A keyboard is an input device. It allows the user to input data into the computer by typing characters and commands. Each key press sends a specific signal to the computer, which processes it according to the current application. Thus, a keyboard is an input device.
4. Speaker: A speaker is an output device. It produces sound from the data received from the computer's audio output. Thus, it does not function as an input device.

Based on the above analysis, the correct answer is: Keyboard, as it is an input device. It allows users to input data and commands into the computer system, which is the primary functionality of input devices.