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Input and Output devices are vital parts of the computer. They are a type of hardware device that forms the computer system. Input and Output devices allow the system to function properly with external aid. They both deal with data but in different ways. Input and Output devices make the world of computer systems. In absence of them, all the innovation and technology that we enjoy is not possible. This is why they become an important part of general knowledge.
The input enables the operator to send data while the output completes the task concerned to the data. These all are additional devices that connect to the device and complete all the tasks accordingly. Keyboards, mouse, scanners, are some of the input devices while printers, monitors, headphones, are some of the output devices.
Input Devices of Computer
The input devices allow the operators to send signals to the computer to perform a certain work assigned. Input devices are vital parts of the computer. They are a type of hardware device that forms the computer system. Input devices allow the system to function properly with external aid. It deal with data but in different ways. Input devices make the world of computer systems. In absence of it, all the innovation and technology that we enjoy is not possible. This is why they become an important part of general knowledge. The receiver at this end is the Central Processing Unit (CPU) which then sends the signal to the output devices.
Input devices further classify according to aspects or features like visual or audio, discrete or continuous, and is it direct or indirect. Some of the classifications are listed below
1. Keyboard Devices
- Keyer
- Keyboard
- Lighted Program Function Keyboard (LPFK)
2. Pointing Devices
- A mouse sitting on a desk.
- A computer mouse
- 3D mice
- Joysticks
- Pointing sticks
3. Composite Devices
- Wii Remote
- Wii Remote with attached strap
4. Game controller
- Gamepad (or joypad)
- Paddle (game controller)
- Jog dial/shuttle (or knob)
- Wii Remote
5. Visual Devices
- Digital camera
- Digital camcorder
- Portable media player
- Webcam
- Microsoft Kinect Sensor
- Image scanner
- Fingerprint scanner
- Barcode reader
- 3D scanner
- Laser rangefinder
- Eye gaze tracker
- Medical Imaging
- Computed tomography
- Magnetic resonance imaging
- Positron emission tomography
- Medical ultrasonography
6. Audio Input Devices
- Microphones
- MIDI keyboard or another digital musical instrument
Output Devices of Computer
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The output devices deals with displaying the result after data processing by the input device. It may be in image, graphic, textual or audio form. They are a type of hardware device that forms the computer system. Output devices allow the system to function properly with external aid. It deal with data but in different ways. Output devices make the world of computer systems. In absence of it, all the innovation and technology that we enjoy is not possible. This is why they become an important part of general knowledge.
These devices show the visual elements on the display. The information on the screen is soft copy and some of the important output devices are listed below
- Speakers
- Monitors
- Printers
- Projector
- Plotter
- Braille Reader
- Television
- Video Card
- Global Positioning System
- Headphones
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