Monday, 6 May 2013

What are computer input devices?Explain its different types with examples

By on 03:28

You may also like:-What are computer output devices?Explain its different types with examples.

Input devices are those devices which takes input from user's in the simple form and convert the data/information into digital form i.e. 1 or 0.

Input device categorisation:-

1)Online input devices/Direct line entry devices:-On line input devices are those devices which are directly connected to computer example keyboard,mouse etc.

2)Offline input devices/Source entry devices:-Offline input devices are those devices which are not directly connected to computer example scanning device.

Types of common input devices:-

1)Keyboard:-Keyboard is a well known input device which contains alphabets,numeric/digits,special keys,function keys etc.Keyboard can be of serial or parallel.

Alphabets:-A to Z,a to z.

Numeric key:-0 to 9

Special keys:-shift,spacebar,ctr,alt etc.

Functions key:-F1,F2.....F12.

Keyboard is used to convert these above mention keys into digital form of computer.

2)Mouse:-Mouse is an input device which is also called a pointing device.It is used to move the cursor on the screen.Mouse works in GUI(Graphical User Interface) mode.Mouse are of different-2 types in which some are physical mouse,optical mouse,cordless mouse.

3)Joystick:-It is also called as game controller device.Joystick is a remote control device which is used in gaming purpose.We will also play game with keyboard but joystick gives more simplicity and more speed than keyboard.

4)Scanner:-Scanner is a example of input device which are mainly used to check OMR sheets.It is also used to copy text,images in the form of soft copy.

5)Bar Code Reader(BCR):-Bar Code Reader is generally used in shopping malls,BCR read the bar code and display the rate of item on the computer screen.It is also used to recognised courier products.BCR takes input in the form of code and convert this bar code into computer language(0 or 1).

Some other input devices are Light pen,track ball,MICR,web camera,touch screen,microphones etc.

If you have any query then leave your comments and don't forgot to follow me on Google+,Facebook,Twitter.


  1. A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry analyzing the barcode's image data provided by the sensor and sending the barcode's content to the scanner's output port.

  2. Alok Sharma, You have very nice info here on Different Types of Input Devices
    Thanks, keep it up! dear.

  3. thanks "Mahmood Alam " and "Andy Adams "

  4. We need more about input devices....

  5. We need more about input devices....

  6. This comment has been removed by the author.

  7. This comment has been removed by the author.

  8. here is much more about input devices

  9. Thanks very much very intersted answ

  10. I love your blog because i was found good information your blog

    We bring you an Amazing Collection of Useful, Beautiful and Quality Products at Very Reasonable Prices. We guarantee our products with an easy return policy.

    Deals Direct

  11. Working of Computer-if you enjoy working with computers then you should know that just like your automobile; your PC requires a monthly safeguarding as well. don't have any text to check? don't have any text to check? Click "Select Samples".No you are doing not ought to take it to the search as a matter of truth you'll be able to simply jazz from the comfort of your home. you are doing not ought to be a pc genius or a mechanic to perform the routine maintenance on your computer. you'll wish to seek out sites on-line which will alter you to run a free computer scan on your computer. The scan itself can check your PC's written account and files and make sure that their is nothing on them which will damage your pc. it'll conjointly take away any muddle which will air your pc that's not necessary. affirmative we tend to all accumulate applications and computer code on our pc that over time we tend to discontinue exploitation however it continues to take a seat on our pc and causes our pc to block in performance. If you've got found this text on "working with computers - keep them clean and updated" helpful; visit our web site below. in mere 2 minutes you'll be able to simply run a free computer scan to see your computers performance. simply because you will experiencing a slow pc or it chilling up all the time; doesn't mean simply} want a replacement pc; it just means it's time to wash up a number of the muddle in your computer.


  12. Nice information.. Thanks for sharing. Addmen offers Omr answer sheet formats for practice of any compitative exam before final paper this will useful for students.
    best omr software

  13. Contact apple support number and get more information about about apple devices. Our technical experts offer 24*7 resolution related technical issues or for more info about apple devices click here
    Apple support number USA
    Apple support number for iPhone
    Apple support number 24 hours
    Apple support on phone


Related Posts Plugin for WordPress, Blogger...