Top 10 Input And Output Devices Of Computer With Examples

Input and output devices are essential components of a computer system that allow users to interact with it. Input devices enable users to provide information and instructions to the computer, while output devices display or transmit the processed information generated by the computer. In this post, described top 10 input and output devices of computer with examples.

What is an Input Devices?

An input device is a piece of equipment that used to allow enter information into a computer system. These devices translate user actions into electronic signals that the computer can understand. Here are the Top 5 Most Used Computer Input Devices, including:

Mouse: Used to move the cursor position on a monitor screen
Keyboard: Used for input text numbers and commands to the computer
Scanner: Used for Archiving physical documents, Editing scanned documents, Sharing digital copies of photos and documents, Creating 3D models of objects (3D scanners).
Webcam: Mainly used for video conferencing
JoyStick: Widely used input device for gaming

Top 5 Most Used Computer Input Devices

1. Computer Mouse

A computer mouse is the most used unique input device that controls a cursor on a computer screen. It allows users to interact with the graphical user interface (GUI) by pointing, clicking, dragging, and scrolling. Mouse are essential for navigating desktops and laptop computers.

Also, computer mouse is a hand-held pointing device that is used to control the movement of a cursor on a computer screen.

Key Features of Computer Mouse

Cursor Control
Left Click
Right Click
Middle Click
Scroll Wheel
DPI (Dots Per Inch)
Optical or Laser Sensor
Wireless Connectivity
Ergonomic Design
Programmable Buttons
Thumb Buttons
Tilt Scrolling
Gesture Support
Back/Forward Buttons
Precision Mode
Battery Life
Polling Rate
Acceleration
Weight

2. Computer Keyboard

A Computer Keyboard is the most commonly used input device that used to enter text and commands into a computer system. It consists of multiple keys that can be pressed to generate letters, numbers, symbols, and perform special functions. The most common keyboard layout is QWERTY, named after the first six letters on the top row of keys.

A computer keyboard is a fundamental input device used to enter characters and functions into the computer system by pressing buttons, or keys.

3. Computer Scanner

Scanner is an another most used input device that converts physical documents, images, or even objects into a digital format. This digital format can then be viewed, edited, and stored on a computer. Scanners are essentially like digital photocopiers that capture the content of a physical item and create a digital file.

A scanner is mostly used to convert physical documents, photographs, and other visual materials into digital files.

4. Webcam

A webcam is an input device that captures video and images and sends them to a computer. They are most commonly used for video conferencing, live streaming, recording videos and even facial recognition. Webcams can be built-in to laptops and desktops, or they can be separate devices that connect to a computer via USB or Wi-Fi. They typically have a built-in microphone to capture audio as well.

A webcam is a small video camera that connects to a computer or other device, typically via a USB port.

5. JoyStick

A joystick is a handheld input device that widely used in controlling video games. Joysticks typically have one or more buttons that can be pressed to perform actions. Some joysticks also have additional features, such as a hat switch that can be used to control movement in eight directions.

What is an Output Device?

An output device is any hardware component that translates information or data into a human-perceptible form, or a form that can be used by other devices. In simpler terms, it’s what allows you to see, hear, or otherwise interact with the results of what you’ve done on a computer. Here are the Top 5 Most Used Computer Output Devices, including:

Monitor: The most common output device, used to display visual information.
Printer: An output device that creates a physical copy of electronic data on paper or other media.
Speakers: Output devices that produce sound.
Projector: An output device that projects an image onto a screen or other surface.
Headphones: Output devices worn on or around the head that produce sound.

1. Monitor

Monitor is the most common type of output device of a computer system which display information visually, such as text, images, and videos. Modern monitors are thin and lightweight flat-panel displays, a vast difference from their bulky predecessors, the cathode ray tube (CRT) monitors, which were dominant before the mid-2000s.

A monitor is an electronic output device used to display information processed by a computer.

Key Features of Monitor

Refresh rate
Response time
Contrast ratio
Display size
Resolution
Viewing angle
Panel technology
Display images, text, video, and graphics information
High dynamic contrast ratio and produce clear images
High degree of freedom in lighting design
Long service life
Fast response
Selectable color
Low total running cost

2. Projector

A projector is an output device. It is a device that takes a video or image signal from a computer or other source and projects it onto a screen or other surface. Projectors are commonly used in classrooms, conference rooms, and home theaters to display presentations, movies, or other visual content.

Key Features of Projector

Brightness
Resolution
Contrast ratio
Color clarity
Throw ratio
Auto iris control
Built-in closed captioning decoder
Good optics
Lens shift
Portability
Projection technology
Wireless usage
Zoom ratio
Aspect ratio
Connections
Customizable screen size
HDMI port
Light output
Light source

Wired network support for projection

3. Plotter

A plotter is a computer output device that creates vector graphics drawings on paper or other materials. They are a specialized type of printer that differs from regular printers in a few ways.

4. Headphones

Headphones are classified as output devices. Their primary function is to receive electrical signals from a source like a computer, phone, or music player and convert them into audible sound waves that we can hear.

5. Computer Speaker

A computer speaker, also known as a multimedia speaker, is an external output device that projects sound from your computer. While most laptops and desktops come with built-in speakers, computer speakers are used to improve the sound quality of your computer’s audio.

Key Features of Computer Speaker

Sound Pressure Level
Nominal Input Power
Input Impedance
Frequency Response
Speaker Size
Speaker Weight