Project on Input Devices
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Transcript of Project on Input Devices
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Project on
Input DevicesPrepared By
Aditya Natarajan
MBA-International Business
Roll No: 20
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Definition
An input device is any peripheral (piece of
computer hardware equipment) used to
provide data and control signals to an
information processing system .
Input and Output devices make up the
hardware interface.
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VARIOUS TYPES OF INPUT DEVICES
KEYBORD Writing input device
MOUSE Pointing input device
SCANNER Scanning input device MICRO PHONE Audio input device
WEBCAM Image & Video input device
TOUCH SCREEN Human Sensitive inputdevice
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KEYBOARD
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KEYBOARD
The keyboard is a way to input letters or
numbers into different applications or
programs.
Types of Keys:
Alphanumeric keys
Function Keys Navigation keys
Modifier Keys
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Mouse
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Mouse
Functions as a pointing device by detecting
2-dimentional motion relative to its
supporting surface.
Can be used only with GUI based O.S.
Eg.Windows
Used to navigate, open/close files,websites.
Main goal is to translate the motion of our
hand into signals that the computet can use.
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Joystick
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Joystick
Used to move cursor from place to place, and
click on various items in programs.
Inputs directional data like a mouse. Moves up-down,left-right.
Mostly used for playing games.
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SCANNER
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SCANNER
Used to copy pictures or other things and save
them as files on the computer.
A light moves slowly over the surface of thepicture or the object to be scanned.
The colours of the reflected light are detected
and digitised to build up a digital image.
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MICROPHONE
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MICROPHONE
Amicrophone, sometimes colloquially called amic ormike, is an acoustic-to-electric transducer or sensorthat converts sound into an electrical signal.
Microphones are used in many applications such astelephones, tape recorders, hearing aids, motionpicture production, live and recorded audioengineering, in radio and television broadcasting and incomputers for recording voice, VOIP(voice over
internet protocol), and for non-acoustic purposes suchas ultrasonic checking.
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WEBCAM
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WEBCAM
Mostly used during long distance chatting.
Webcams typically include a lens, an image
sensor, and some support electronics . Video chat is a good example of positive use.
Internet privacy is the biggest concern of
webcams and a major negative point .
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TOUCH SCREEN
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TOUCH SCREEN
A computer display screen sensitive to human
touch.
Used with information kiosks, computer-basedtraining devices, and systems designed to help
individuals having difficulty using
mouse/keyboard.
