MAGNETIC STRIPE READER

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Presentation transcript:

INPUT DEVICES obj: To know more about devices and card used for direct data entry.

MAGNETIC STRIPE READER Many plastic cards, such as credit cards, have a strip of material that can be magnetized on the back. Data can be stored here in the form of magnetized dots. Usually the data stored on this strip in the same data shown on the front of the card (e.g. the credit card number, expiry date and customer name). The stripe allows this data to be input to a computer system faster and more accurately than by typing it in. A magnetic strip/stripe reader is used to read the data from the stripe. This is usually done by ‘swiping’ the card through a slot on the reader.

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SMART CARD READERS Modern credit cards and ID cards don’t use a magnetic strip. Instead they have a tiny ‘chip’ of computer memory embedded inside them. (These cards are often referred to as smart cards.) Data can be stored in this memory and read back using a ‘chip’ reader. A card is inserted into the reader where metal contacts connect to the metal pads on the front face of the card. The reader can then access the memory chip and the data stored on it.

Continued Smart cards can store much more data than magnetic strip cards, e.g. an ID smart card would store not only the owner’s name and card number, but might also have a digital image of the person. Satellite TV decoders use smart cards to store which channels a user has paid for. The data is encrypted so that it is not easy to alter (you can’t add new channels without paying!) Many types of card use this system: id cards, phone cards, credit cards, door security cards, etc.

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OPTICAL MARK READER Optical Mark Recognition (OMR) is a technology that allows the data from a multiple-choice type form to be read quickly and accurately into a computer. Special OMR forms are used which have spaces that can be colored in(usually using a pencil). These marks can then be detected by an OMR scanner. Common uses of OMR are multiple-choice exam answer sheets and lottery number forms.

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OPTICAL CHARACTER READER Optical Character Recognition (OCR) is a software technology that can convert images of text into an actual text file that can then be edited, e.g. using word-processing software). The result is just as if the text had been typed in by hand.

Continued OCR is typically used after a page of a book has been scanned. The scanned image of the page is then analyzed by the OCR software which looks for recognizable letter shapes and generates a matching text file. Advanced OCR software can recognize normal handwriting as well as printed text - this is usually called handwriting recognition.

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MAGNETIC INK CHARACTER READER Magnetic Ink Character Recognition (MICR) is a technology that allows details from bank cheque to be read into a computer quickly and accurately. The cheque number and bank account number are printed at the bottom of each bank cheque in special magnetic ink using a special font. These numbers can be detected by an MICR reader.

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Name the information stored in magnetic strip card. Moiz Name the information stored in magnetic strip card.

Bilal What is the additional information stored in the chip other than what is stored in the magnetic strip card.

Give one advantage of smart card reader over magnetic stripe reader. Islem Give one advantage of smart card reader over magnetic stripe reader.

Explain the working of OCR. Shaheer Explain the working of OCR.

Explain Magnetic stripe reader. Amro Explain Magnetic stripe reader.

Explain optical mark reader Aakesh Explain optical mark reader

Name any three applications of magnetic stripe reader. Osama Name any three applications of magnetic stripe reader.

Name any three applications of smart card reader. Awadh Name any three applications of smart card reader.

Explain magnetic ink character recognition Adnan Mustafa Explain magnetic ink character recognition

Arsalan Name the device which used for scanning documents so that they can be modified using a word processor.

Mir Nohan Name the device which reads the characters even if somebody writs over the magnetic ink characters.

Sadat Name the device used to read questionnaires examination papers, multiple-choice papers.