C.S.3 Input and Output Devices
Input Devices
A. Keyboard
B. Pointing DeviceJoystick
Graphic Tablet
Cordless wheel mouse 3-button mouse
Wheel mouse for notebooksiMouse for iMac
Mouse
Light Pen
A light pen
Trackball
Touch Screen To respond when a position of the screen is touched by the fi
ngers of the user
A touch screen kit solution
C. Scanning DevicesScanner
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
Bar code 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
Optical Character Reader
MC PaperMC Paper
MICR
Letter on Cheque
Magnetic Ink Character
MICR character set - E13B
MICR character set - CMC7
Magnetic Strip Card Reader
Smart Card Reader
Two types of smart cards and their readersTwo Types of smart cards and their readers
transmit wave signal to computer
D. Multimedia Input DevicesMicrophone
ViewCam To capture video signal and put it directly into PC for editing Can be used for video-conferencing
Digital Camera After 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
LCDCRT
Screen Image Projector
Sound Synthesizer
Speaker
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