C.S.3 Input and Output Devices

Input Devices

Keyboard

Magnetic Strip Card Reader

Bar code readerread the bar codes(series of parallel

vertical lines used to assign a unique identification code to an item) and the information is then transmitted to computer for processing

An example of a bar code

Bar code Reader

Optical Character Reader

MC PaperMC Paper

Magnetic Ink Character

MICR character set - E13B

MICR character set - CMC7

MICR

Letter on Cheque

Graphic Tablet

Joystick

Cordless wheel mouse 3-button mouse

Wheel mouse for notebooksiMouse for iMac

Mouse

Light Pen

A light pen

transmit wave signal to computer

Voice Input- Microphone

Touch Screento respond when a position of the screen i

s touched by the fingers of the user

A touch screen kit solution

Scanner

Image Scan Edit

to recognize different kindsof input devices mouse, keyboard,bar-code reader

Text Image

OCR

To recognize differentkinds of input devices•mouse•keyboard•bar-code reader

Edit

Smart Card Reader

Two types of smart cards and their readers

ViewCamcapture video signal and put it directly

into PC for editingcan be used for video-conferencing

Digital Cameraafter taking pictures, the user can

connect the camera directly to a home computer, stored on disks, or sent to friends via electronic mail

Digital camera

Photo printer for digital camera

Memory card fordigital camera

Quiz

1.What kind of input device should be chosen to manage the stock in the supermarket ?

B. Point of Sale Terminal

A. Mouse

C. OMR Reader

D. Monitor

B. Point of Sale Terminal

2.Mr. Wong wants to edit a photo using his computer. What input device should he choose ?

B. Image Editing Software

A. Keyboard

C. Image Scanner

D. Mouse

C. Image Scanner

3.What is the standard input device in a computer system ?

B. Keyboard

A. Mouse

C. Monitor

D. Joystick

B. Keyboard

4.What kind of input device should be used in Video Conferencing ?

B. Point of Sale Terminal

A. WebCam

C. Digital ViewCam

D. None of the above

A. WebCam

5.Which of the following is used to recognize characters in cheque ?

B. OMR reader

A. OCR reader

C. MCR reader

D. MICR readerD. MICR reader

Output Devices

Visual Display Unit

Visual Display Unit

Visual Display Unit

Visual Display Unit

Sound Synthesizer

Graphic Plotter

Larger size of printout

Dot Matrix Printer

Dot Matrix Printer character formation

Ink Jet Printer

Laser Printer

Simplified mechanism of laser printer

End