barcode & smart cards
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Barcode & Smart
cardsBarcode Smart cards
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Types :
-One dimensional - Two dimensional
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One dimensional
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Manufacturer’s code Product code
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Two Dimensional
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How to Read
2-D bar codes (sometimes called matrix codes) carry information in two directions: vertically and horizontally.
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tensbar codes are capable of holding D-2of times as much hundredsand even
information as 1-D bar codes. For instance, one of the most popular 2-D
Denso Wave's QR bar code formats, digits or 000,7, can hold more than Code
4,000 characters of text, whereas even the most complex 1-D codes top out around 20 characters. 2-D bar codes are
.easy to scanand smallalso
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Advantages Of Barcode
Fast and Reliable Data Collection.
10,000 Times better Accuracy.
Faster Access to Information.
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Disadvantages Of Barcode
Require line of sight to be read.
Can only be read individually.
Cannot be read if damaged or dirty.
Can only identify the type of item.
Cannot be updated.
Require manual tracking and therefore susceptible to human error.
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How Smart Cards WorkA smart card contains more information than a magnetic
stripe card and it can be programmed for different applications. Some cards can contain programming and data to support multiple applications and some can be updated to add new applications after they are issued. Smart cards can be designed to be inserted into a slot and read by a special reader or to be read at a distance, such as at a toll booth. Cards can be disposable (as at a trade-show) or reloadable (for most applications). An industry standard interface between programming and PC hardware in a smart card has been defined by the PC/SC Working Group, representing Microsoft, IBM, Bull, Schlumberger, and other interested companies. Another standard is called OpenCard. There are two leading smart card operating systems: JavaCard and MULTOS.
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Chip
A very secure way of storing a small amount of sensitive data
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Chip Operating System
Applicative memory (where you store your data)
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•Memory vs. microprocessoroMemory cards simply store data
read and write to a fixed address on the cardStraight Memory Cards
Protected Cards: configured to restrict access through a passwordStored Value Memory Cards: such as a telephone card, the chip has
memory cells, one for each telephone unit. A memory cell is cleared each time a telephone unit is used.
oMicroprocessor cardsMiniature Computer with microprocessor chip, input/output
port, OS, ROM, EEPROM, RAMAdd, delete, manipulate information in its memory
Built-in security featuresmultiple functions and/or different applications reside on the
card
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•Contact vs. contactlessoContact smart card
are inserted in a smart card reader making physical contact with the reader
oContactless smart cards smart cards that employ a radio frequency (RFID) between card
and reader without physical insertion of the card
oHybrid card combines the two features
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Advantages :
More Secure.
Safe to Transport.
Double as an ID Card.
Prevents Fraud.
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Possible Disadvantages:
Easily Lost.
Slow Adoption.
Possible Risk of Identity Theft.
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Applications :
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THANK YOU
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