INPUT DEVICES
LATEST INPUT DEVICES
WHAT IS AN INPUT DEVICES ?
An input device is any device that provides input to a computer. There are dozens of possible input devices, but the two most common ones are a keyboard and mouse.
TYPES OF INPUT DEVICES
Keyboard
Mouse
Joystick
Light pen
Track Ball
Scanner
Graphic Tablet
Microphone
Magnetic Ink Card Reader (MICR)
Optical Character Reader (OCR)
Bar Code Reader
Optical Mark Reader
SOME OF THE LATEST INPUT DEVICES
DIGITIZER
Digitizer is an input device, which converts analog information into a digital form. Digitizer can convert a signal from the television camera into a series of numbers that could be stored in a computer. They can be used by the computer to create a picture of whatever the camera had been pointed at.
MAGNETIC INK CARD READER (MICR)
MICR input device is generally used in banks because of a large number of cheques to be processed everyday. The bank's code number and cheque number are printed on the cheques with a special type of ink that contains particles of magnetic material that are machine readable.
SCANNER
Scanner is an input device, which works more like a photocopy machine. It is used when some information is available on a paper and it is to be transferred to the hard disc of the computer for further manipulation.
Bar Code Readers
Bar Code Reader is a device used for reading bar coded data (data in form of light and dark lines). Bar coded data is generally used in labelling goods, numbering the books, etc. It may be a hand-held scanner or may be embedded in a stationary scanner.
Optical Mark Reader (OMR)
OMR is a special type of optical scanner used to recognize the type of mark made by pen or pencil. It is used where one out of a few alternatives is to be selected and marked. It is specially used for checking the answer sheets of examinations having multiple choice questions.