Input Devices. Keyboard Keyboard is used to type text Application Application Word- Processing Word-...

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Transcript of Input Devices. Keyboard Keyboard is used to type text Application Application Word- Processing Word-...

InputInput

DevicesDevices

KeyboardKeyboard

Keyboard is

Keyboard is

used to type

used to type

texttext

ApplicationApplication Word-Word-

ProcessingProcessing

MouseMouse

Application:Application: GamesGames PaintPaint Almost for Almost for

everythingeverything

Controls the Controls the movement movement of the of the cursor on cursor on the monitorthe monitor

TrackballTrackball

Application:Application: Games Games PaintPaint Almost Almost

everythingeverything

It is like the It is like the mouse but mouse but instead the instead the marble is marble is on the on the mouse not mouse not under it under it

Light PenLight Pen

An input An input device that device that utilizes a utilizes a light-sensitive light-sensitive detector to detector to select objects select objects on a screenon a screen

Application :Application : Computer Computer

Assisted Assisted DrawingDrawing

Touch ScreenTouch Screen

Application:Application: Fast-food Fast-food

menu menu selectionselection

The screen is The screen is made up of a made up of a number of number of icons, icons, representing representing various various processes, it processes, it can be selected can be selected by touching the by touching the icon on the icon on the screenscreen

ScannerScanner

Application:Application: Desktop Desktop

publishingpublishing

This is a device, This is a device, which scans a which scans a document document (much similar to (much similar to a photocopier) a photocopier) and translates and translates graphical image graphical image or document or document into data into data readable for the readable for the computercomputer

Digital Camera Digital Camera

Application:Application: Take Take

picturespictures

High-resolution pictures High-resolution pictures can be taken and can be taken and stored in specially stored in specially designed memory designed memory (memory stick and (memory stick and floppy disks) it can be floppy disks) it can be even connected with even connected with the computer the computer

Bar Code ReaderBar Code Reader

Application:Application: Point of SalePoint of Sale

The bar code The bar code reader, reads reader, reads the code on the the code on the bottom of the bottom of the product, these product, these codes contain codes contain where the where the product was product was made and other made and other informationinformation

Optical Mark reader (OMR)Optical Mark reader (OMR)

Application:Application: Correction of Correction of

multiple-choice multiple-choice questionsquestions

A device that A device that reads marks in reads marks in predetermined predetermined places on places on specially specially prepared cards. prepared cards. They are They are typically used in typically used in multiple choicemultiple choice

Magnetic Ink Character Magnetic Ink Character Reader (MICR)Reader (MICR) Application:Application: Cheque Cheque

processingprocessing Used by banks Used by banks

to read cheque to read cheque numbersnumbers

On the bottom On the bottom pf cheques, pf cheques, there is a there is a sequence of sequence of funnily-shaped funnily-shaped number, this number, this reads those reads those numbers to see numbers to see if the cheque is if the cheque is real or not.real or not.

Optical Character Reader Optical Character Reader (OCR)(OCR) Application:Application: Business Business

papers papers computerisationcomputerisation

To read text To read text from paper to from paper to the computerthe computer

In operation, an In operation, an OCR system is OCR system is a bar code a bar code reader but it is reader but it is used to read used to read documents in documents in the computerthe computer

Speech Reader Speech Reader

Application:Application: Virtual Virtual

TechnologyTechnology Used to give Used to give

instructions and instructions and informationinformation

This is the This is the ultimate goal for ultimate goal for many computer many computer scientists – scientists – being able to being able to speak to the speak to the computer to computer to give instructions give instructions and even to and even to dictate dictate informationinformation

Hand Held TerminalsHand Held Terminals

Application:Application: SurveyingSurveying

These terminals are These terminals are similar to enhanced data similar to enhanced data bank calculators . They bank calculators . They allow offsite entry of allow offsite entry of information and the information and the ability to transfer the ability to transfer the data directly to the data directly to the mains computers and mains computers and mains sites by attaching mains sites by attaching a suitable connectiona suitable connection

Special gearSpecial gear

Application :Application : Architectural Architectural

walkthroughswalkthroughs Sophisticated Sophisticated

3D games 3D games

These add up These add up being involved being involved in the system as in the system as part of 3D part of 3D gamesgames

Hand writing recognitionHand writing recognition

A device which A device which you can use to you can use to write on a write on a computer screen computer screen and the computer and the computer translate your translate your hand writing as he hand writing as he could understandcould understand

Application:Application:Used instead of a keyboardUsed instead of a keyboard

Pen ComputingPen Computing

•A computer A computer that utilizes that utilizes an electronican electronic pen pen

Instead of a keyboardInstead of a keyboard

Input DevicesInput Devices

The EndThe End

Luke GrechLuke Grech Michael SultanaMichael Sultana