What is input device and output device?

Think of it like this: Input devices are your way of communicating with the computer, while output devices are the computer’s way of communicating with you. Example: You type with a keyboard (input) and see text on screen (output).

An input device is hardware that allows users to send data to the computer (e.g., keyboard, mouse, scanner, microphone). An output device is hardware that lets the computer send information back to the user (e.g., monitor, printer, speakers).

इनपुट डिवाइस का मतलब है – कंप्यूटर में डाटा डालने वाले उपकरण, जैसे कीबोर्ड, माउस। आउटपुट डिवाइस का मतलब है – कंप्यूटर से डाटा निकालने वाले उपकरण, जैसे मॉनिटर, प्रिंटर।

For more details with diagrams, see StudyTonight – Input and Output Devices. It explains types of devices clearly.

Some devices act as both input and output, like touchscreens (you give input by touching, and output is displayed visually). This is called an I/O device.