1.
OCR (Optical Character Reader/Recognition/Recognizer)
2.
OMR (Optical Mark Reader/Recognition/Recognizer)
3.
MICR (Magnetic Ink Character Reader/Recognition/Recognizer)
4. BCR (Bar Code Reader/Recognition/Recognizer)
1.
OCR (Optical Character Reader/Recognition/Recognizer)
(What is Optical
Character Reader/Recognition/Recognizer?)
This is the most sophisticated optional
recognition, which recognizes specially shaped numeric and alphabetic
characters. It directly reads any printed character and no special ink is
required. OCR can read at a speed of about 2,400 characters per second.
2.
OMR (Optical Mark Reader/Recognition/Recognizer)
This is a device that falls under the input
device. This is used to quickly check whether the answer ticked in the
objective question is correct or not. That is, the results of the objective
examination given by millions of candidates can be published quickly.
3.
MICR (Magnetic Ink Character Reader/Recognition/Recognizer)
This MICR reader reads the characters, which are written using special magnetic ink. This way of input using magnetic ink used in banking where cheque numbers, account numbers and banks identification number are printed using special magnetic ink.
4.
BCR (Bar Code Reader/Recognition/Recognizer)
Bar code is a special code, which is forming with
vertical lines. This code contains cost of the item, date of manufacturing,
batch number and manufacture information. The bar code reader is used to
decoding the cost of the item, date of manufacturing, batch number and
manufacture information etc.
