Question

Describe three common and mark recognition devices

Answer 1

Answer:

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Explanation:

MICR (Magnetic Ink Character Recognition):

It is a special scanner. It reads the characters printed with magnetic ink and converts them into digital signals. These signals are  then input to the computer for further processing.

OMR (Optical Marks Recognition):

OMR device is used to read handwritten marks or symbols printed on the paper. It uses a light beam to scan the marks and converts them into digital signals.These signals are then input to the computer for further processing.

Smart card:

This card contains a thin microprocessor and memory chip that is embedded in it. The card is inserted into a card reader. the card reader reads information stored on the card. it can also store and update some basic information. A mobile SIM card and an ATM card are examples of smart card.