Input And Output Device
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Any hardware component allows users toenter data and instructions into a computer
Types of input device
keyboard
an input device that contain keys userspress to enter data and instructions intocomputer
desktop computer keyboard
keyboard for mobile device
pointing device
an input device that allows a user to controla pointer on the screen
mouse
trackball
touchpad
pointing stick
pen input
an input device in which need to touch on aflat surface to write, draw and makeselection
stylus
digital pen
graphic tablet
an input device that allows a user tohanddraw images, animations and graphic
scanner
an input device that allows user to convertprinted material into a form the computercan used
voice input device
an input device that allows user to speakinto a computer
microphone
webcam
an input device that allows user to capturevideos and images
touch screen
an input device that sensitive to pressure
biometric input device
an input device that allows user toauthenticates person's identity
fingerprint reader
iris recognition
hand geometry system
game controllers
an input device that directs movements andactions of onscreen objects
gamepads
joystick and wheel
light guns
reading device
examples
Optical Character Recognition
Optical Mark Recognition
Radio Frequency Identification
MICR

Any hardware component that conveys informationto people
TYPES OF OUTPUT DEVICE
display device
an output device that convey informationto the user in the form text and graphics
LCD monitor
CRT monitor
Plasma monitor
printers
an output device that convey information inthe form text and graphics on a physicalmedium
inkjet printer
laser printer
label and postage
audio output device
an output device that convey information inthe form of music, speech etc
speakers
headphone
data projector
an output device that takes the text andimages displaying on the screen
LCD projector
digital light processing
interactive whiteboard
an output device that touchsensitivedevice, resembling a dryerase board

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touch screen
interactive whiteboard
digial camera
headsets
facsimile (fax machine
microphone