Correct option is A
MICR stands for Magnetic Ink Character Recognition. A MICR scanner is used to read characters printed using magnetic ink, especially on bank cheques. It captures the encoded information and sends it to the computer for processing, which makes it an input device.
Important Key Points:
- MICR is widely used in the banking industry for secure and quick processing of cheques.
- It ensures accuracy because magnetic ink characters can be read even if the document is slightly damaged or written over.
- MICR devices typically scan the cheque number, account number, and bank code.
Knowledge Booster:
- Output devices display or produce results (e.g., monitor, printer), which MICR does not.
- Secondary memory refers to data storage units like hard drives or SSDs.
- The control unit is a part of the CPU responsible for directing operations—not related to external hardware like MICR.