Computer Basics: 10 Examples of Input Devices

Updated on August 10, 2019
SuperBrainwave profile image

Paul's passion for technology and digital media goes back over thirty years. Born in the UK, he now lives in Florida, USA.

Source

What is an Input Device?

An input device is essentially a piece of hardware that sends data to a computer. Input devices either interact with or control the computer in some way. The most common input devices are the mouse and the keyboard, but there are many others. The key distinction between an input device and an output device is that the former sends data to the computer, whereas the latter receives data from the computer. Input and output devices that provide computers with additional functionality are also called peripheral, or auxiliary devices.

10 Examples of Input Devices

  1. Keyboard
  2. Mouse
  3. Touchpad
  4. Scanner
  5. Digital Camera
  6. Microphone
  7. Joystick
  8. Graphic Tablet
  9. Touch Screen
  10. Webcam

I will give more detail on each selected device below.

1. Keyboard

Keyboards are the most common type of input device. Before keyboards, interaction with computers was generally carried out using punch cards and paper tape. Most English language keyboards use the QWERTY layout for the alphabetic keys, surrounded by number, symbol, function, and other key types. By pressing the relevant keys, the user feeds data and instructions to the computer.

2. Mouse

The mouse interacts with a computer through process known as "point and click". Essentially, when the user moves the mouse on the mouse pad, the pointer moves in a corresponding direction on the monitor screen. The concept of a computer mouse has its roots in the trackball, a related pointing device that was invented in 1946, which used a "roller ball" to control the pointer. Most modern computer mice have two buttons for clicking, and a wheel in the middle for scrolling up and down web pages.

3. Touchpad

Also known as a trackpad, a touchpad is a common substitute for a computer mouse. Essentially a specialized surface that can detect the movement of the user's finger and use that information to direct a pointer and control a computer. Touchpads were first introduced for laptops in the 1990's, and it's now rare to find a laptop without one.

4. Scanner

The word "scanner" can be used in a number of different ways in the computer world, but here I am using it to mean a desktop image scanner. Essentially, it's an input device that uses optical technology to transfer images (or sometimes text) into a computer, where the signal is converted into a digital image. The digital image can then be edited, emailed, or printed.

5. Digital Camera

Digital cameras can be used to capture photographs and videos independently. Later, the files can be transferred to the computer, either by connecting the camera directly with a cable, removing the memory card and slotting it into the computer, or through other transfer methods such as Bluetooth. Once the photos are on the computer, they can be edited, emailed, or printed.

6. Microphone

A microphone captures audio and send it to the computer, where the audio is converted to a digital format. Once the audio has been digitized, it can be played back, copied, edited, uploaded, or emailed. Microphones can be used to record audio, or to relay sounds live as part of a video chat, or audio stream.

7. Joystick

Joysticks are commonly used as a way of controlling computer video games (as well as having a host of other uses, such as controlling jet planes and construction machinery). Essentially, the joystick is a stick that pivots on a base and sends its angle or direction to the computer. There is also often a trigger, as well as one or more buttons that can be pressed too.

8. Graphic Tablet

Also known as digitizers, graphic tablets are input devices used for converting hand-drawn artwork into digital images. The user draws with a stylus on a special flat surface, as if they were drawing on a piece of paper. The drawing appears on the computer screen and can be saved, edited, or printed. Instead of just scanning finished drawings into the computer using a scanner, the graphic tablet offers greater control and versatility for artists.

9. Touch Screen

Many devices nowadays use a touch screen rather than a mouse as a way for users to point, drag, or select options on a screen. As the name suggests, a touch screen is a touch sensitive screen which reacts to fingers moving across it. Touch screens are particularly common with portable devices, such as tablets, palmtops, laptops, and smartphones.

10. Webcam

Webcams are different from digital cameras in that firstly, they cannot operate independently from a computer, and secondly, they have no inbuilt memory. Although webcams can capture photographs and videos, more often they are used to live stream videos.

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

© 2019 Paul Goodman

Comments

    0 of 8192 characters used
    Post Comment
    • profile image

      Joyce 

      3 weeks ago

      Fantastic

    • profile image

      Ashwini Jadhav 

      4 weeks ago

      Helpful...

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, turbofuture.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://turbofuture.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
    ClickscoThis is a data management platform studying reader behavior (Privacy Policy)