What is an Input Output Device?

An input output device is an electronic device that accepts information or provides output to another device. These devices include speakers, microphones, and printers. The outputs may be audio, visual, or any combination of these. Some outputs provide status data to a computer or other device. The devices may also accept control commands and display keyboard lights.

An input output device helps a computer process data and reproduce the results of processing. These devices can be hardware components, or software components, that allow the computer to receive input data and reproduce the output from another device. Most devices have only one type of input or output, while some are both. Typically, an input device only accepts information from the user and an output device receives data from another device.

Input and output devices are necessary for computer systems to function. This article explains the definitions of these devices and explains their function. Learning to distinguish these devices will help you crack the GATE exam. When defining an input or an output device, keep in mind that the two terms may overlap, but they are similar enough to make them easy to understand.

An input device receives data from an input source, such as a keyboard or mouse, and sends that information to a computer. An output device can be an audio or visual device, and can be direct or indirect. The most common input device is a keyboard. It is connected to a computer through a USB or WiFi system. It contains keys that represent the different functions of a computer.

Another example of an input and output device is a data projector. This type of output device was invented in the 1980s. The first data projector was a monochrome device. Nowadays, modern projectors are connected to computers via HDMI or VGA cables. In addition, they also provide feedback to the computer.

Another common input and output device is a light pen. This is used to manipulate the display screen, select objects, and manipulate graphics. They work similarly to a mouse and use a light-sensitive detector. These devices are used in large hotel rooms. The computer uses these input and output devices to translate data to a visual output.

A scanner, on the other hand, works similar to a photocopier, transferring information from paper to a computer. Scanners convert printed text into digital images and can sometimes be edited before printing. In addition, an optical character recognition device can be used to read and convert printed text into machine-readable code. The data is then saved in the computer’s memory.

A joystick is another input and output device. This pointing device has a ball-stick-like structure and can move in all directions. It is often used for gaming purposes. It also has an inbuilt photocell and optical system inside a tiny tube. When you press a button, the tip moves on the screen, and the light is detected by the photocell. The computer can then process the signals sent from the joystick and display them on the monitor.