MAGNETIC INK CARD READER
• MICR input device is generally used in banks because of a large number of cheques to be processed every day.
• 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.
• This reading process is called Magnetic Ink Character Recognition (MICR).
• The main advantage of MICR is that it is fast and less error prone.
OPTICAL CHARACTER READER (OCR)
• Used to read a printed text.
• OCR scans text optically character by character, Converts them into a machine readable code and stores the text on the system memory.
BAR CODE READER
• 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.
• Bar Code Reader scans a bar code image, converts it into an alphanumeric value, which is then fed to the computer to which bar code reader is connected.