MICR:
MICR is
a character recognition technology used primarily
by the banking
industry to facilitate the processing
of cheques. The human readable characters are printed on documents using a magnetic
ink. It stands for Magnetic Ink Character Recognition.
OMR:
OMR which stands for Optical
Mark Recognition is the process of gathering data with an optical scanner by measuring
the reflectively of light at predetermined positions on a surface.
OCR:
OCR stands for
Optical
Character Recognition. OCR is
the recognition
of printed or written
text characters by a computer.
It is the application software that allows a computer to recognize printed or
written characters, e.g. letters, numbers, punctuation marks, and pictograms using
an optical scanner for input. OCR is being used by libraries to digitize and preserve
their holdings.
OBR:
It stands for Optical Bar
Code Reader which is used for reading bar-coded data. It scans a set of vertical
bars of different width for specific data and is used to read tags. Bar code reading
is done by a light pen or scanner connected to a computer.