Which one of the following is NOT an input device?

Correct option is B

A monitor is an output device, not an input device. It displays information from the computer to the user. The other options—scanner, digitizer, and keyboard—are input devices used to send data to the computer.

Important Key Points:

1. Scanner: Captures images or documents and converts them into digital data (input device).
2. Digitizer: Converts analog information (like drawings) into digital format (input device).
3. Keyboard: Used to input text and commands into the computer.

Knowledge Booster:

• Input Devices: Include keyboards, mice, scanners, and cameras, which send data to the computer for processing.
• Output Devices: Include monitors, printers, and speakers, which display or produce the results of processing.
• Modern devices like touchscreen monitors combine input and output functionalities.