What is Input Devices



 


Input Devices

There are several input devices that are as follows:

Keyboard

one of the primary input devices used to input data and commands. It has function keys, control keys, arrow keys, keypad and the keyboard itself with the letters, numbers and commands.  Keyboards are connected to the computer through USB or Bluetooth.  A laptop keyboard is more compact than a desktop keyboard to make the laptop smaller and lighter.  Smartphones and tablets use on-screen keyboard to input messages and select commands.

Mouse

It is an input device used to control the cursor and coordinates. It can be wired or wireless.  It allows the user to do the following:

Move the mouse cursor

Select

Scroll

Open or execute a program

Drag-and-drop

Hover

Perform other functions with the use of additional buttons

A laptop uses a touchpad as the mouse.  A smartphone and tablet use a touchscreen as primary input device and the user’s finger is used as the mouse.

Microphone

It is an input device that allows users to input audio into their computers. Here are some uses of the microphone:

Audio for video

Computer gaming

Online chatting

Recording musical instruments

Recording voice for dictation, singing and podcasts

Voice recorder

Voice recognition

VoIP – Voice over Internet Protocol

Digital Camera

It is an input device that takes pictures digitally. Images are stored as data on memory cards.  It has an LCD screen that allows users to preview and review images.  Digital cameras have become popular over film cameras because of the following features:

LCD screen – allows users to view the photos and videos immediately

Storage – can store thousands of pictures

Picture development – allows users to choose and pick which pictures to develop

Size – takes up less space and can be easily carried

Scanner

It is an input device that reads an image and converts it into a digital file. A scanner is connected to a computer through USB.  There are different types of scanners:

Flatbed scanner – uses a flat surface to scan documents

Sheetfed scanner – like a laser printer where paper is fed into the scanner

Handheld scanner – the scanner is dragged over the page to be scanned

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