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Information and Communication Technology Applications

Magnetic Ink Character Recognition (MICR)
Notes Magnetic Ink Character Recognition is used to recognise the magnetically-charged characters, mainly
found on bank cheques as shown in Figure 5.15. The magnetically-charged characters are written
by a special ink called magnetic ink. MICR device reads the patterns of these characters and compares
them with special patterns stored in memory. Using MICR device, a large volume of cheques can be
processed in a day. MICR is widely used by the banking industry for the processing of cheques.

Figure 5.15: A Cheque Showing Magnetically-charged
Characters that can be Read by an MICR Device

Magnetically-Charged Characters

5.1.3 Basic Output Devices

The output devices, which have become now essential to get the output on a today’s PC are called
Basic Output Devices. These devices are mostly required for basic output operations. These devices
include Monitor, Printer and Speakers/Headphone as shown in Figure 5.16. Let us discuss them.

Figure 5.16: A Computer with Basic Output Devices

Monitor
Visual Display Unit (VDU), commonly called monitor is the main output device of a computer. It
consists of a Cathode Ray Tube (CRT), which displays characters as output. It forms images from

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