Chapter – 3 : Input & Output Devices, It’s Types

An input device is any hardware component that allows a user to enter data and control signals into a computer. An output device, on the other hand, is used to convey information from the computer to the user or another device.

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🔹 Input Devices

These let you send data to the computer:

• Keyboard – For typing text.
• Mouse – For pointing and clicking.
• Scanner – Converts physical documents to digital.
• Microphone – Captures audio.
• Webcam – Captures images and video.

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🔹 Output Devices

These let the computer send data to you:

• Monitor/Screen – Displays visual output.
• Printer – Produces physical copies of digital documents.
• Speakers – Output sound.
• Projector – Projects the display onto a surface.

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🔁 Bonus: Input/Output Devices (I/O Devices)

Some devices can do both:

• Touchscreen – Accepts touch input and displays output.
• External drives – Can read (input) and write (output) data.

Want a visual diagram or examples from daily life?