Hardware Devices

An input device is a piece of hardware that sends data to a computer for control and interaction. It permits raw data to be entered into the computer for processing.

The following is a list of input devices often used in computers and other computing devices:

A computer keyboard

– one of the most used input devices for data and orders. Function keys, control keys, arrow keys, a keypad, and the keyboard itself with letters, numbers, and commands are all included. USB or Bluetooth connections are used to connect keyboards to computers. To make the laptop smaller and lighter, a laptop keyboard is smaller than a desktop keyboard. On-screen keyboards are used on smartphones and tablets to type messages and choose actions.

The mouse is a type of input device that allows you to control the cursor and coordinates. It has the option of being wired or wireless. It enables the user to perform the following tasks:

Move the mouse cursor around the screen.

  • Choose
  • Continue scrolling
  • Start or run a programme
  • Drag-and-drop functionality is available.
  • Hover your mouse over the image.

Additional buttons can be used to do other tasks.

The mouse on a laptop is a touchpad. A touchscreen is utilised as the primary input device on a smartphone or tablet, and the user’s finger serves as the mouse.


A computer input device that lets users to record and playback sounds. Here are some examples of microphone applications:

  • The audio for the video
  • Gaming on a computer
  • Chatting on the internet
  • Instruments being recorded
  • For dictation, singing, and podcasting, I record my voice.
  • audio recorder
  • Recognition of speech
  • VoIP (Voice over Internet Protocol) is a technology that allows people to communicate via the internet

Camera (Digital)

A digital camera that takes photographs as input. Images are saved on memory cards as data. It comes with an LCD display that allows users to preview and review photographs. Because of the following advantages, digital cameras have surpassed film cameras in popularity:

  • Users can immediately examine images and movies on the LCD screen.
  • Storage – thousands of photos can be stored.
  • Picture development – allows users to select and choose the images they want to develop.
  • Size — takes up less space and is easy to transport.

Scanning device

An image-reading gadget that turns the image into a digital file. A USB connection is used to connect a scanner to a computer. Scanners come in a variety of shapes and sizes:

  • A flatbed scanner scans papers on a flat surface.
  • A sheetfed scanner is similar to a laser printer in that it scans paper that is fed into it.
  • The scanner is dragged over the document to be scanned with a handheld scanner.
  • A card scanner is used to scan business cards.

Touchscreen – A touchscreen is a type of input device that allows people to interact with computers by using their fingers. Laptop monitors, cellphones, tablets, cash registers, and information kiosks all use it. The following are the most popular touchscreen functions:

  • swiping
  • Tap twice
  • Grasp and hold
  • slam
  • Swipe to the right
  • In a bind

Barcode Reader

A barcode scanner, often known as a point of sale (POS) scanner, is an input device that can read barcodes.

A webcam is an input device that takes still images or motion video and is connected to a computer and the internet.

Biometric devices are input devices that allow biometric data to be entered into a computer. The following are examples of biometric devices:

  • Face recognition software
  • Scanner for the hands
  • Scanner for fingers
  • Scanner for voice

Stylus (stylus)

A pen-shaped input device for writing or drawing on a graphic tablet or gadget’s screen. It was once reserved for graphic tablets and PDAs, but it is now widely utilised on mobile devices to replace the user’s fingers. It’s utilised to improve navigation accuracy and keep oils from the user’s fingers off the device’s screen.