Possibly unconsciously every day we will meet barcode, for example at food product, drug, goods consumer which we have, plane ticket, student card, even reach envelope which we to receive (usually from outside country) also we meet barcode, for the reason this article will comment is and how barcode.
Barcode basically is arrangement of vertical line of b/w with different thickness, very simple but very useful, with utility saving data to be specific for example production code, expiration date, identity number easily and cheap.
Although such technological always grows with finding of media magnetic, RFID, electronics tags, serial of EEPROM (like at smart card), barcode always stays and still having certain excess that is, most important, cheap and easy, because media applied is paper and ink, while to read barcode there is so much choice in marketing with cheap relative price started from which is in the form of pin (wand), slot, scanner, up to CD and even we can make his own.
Types Barcode
Type barcode hardly many starting from traditional that is 1 dimension up to barcode which multi dimension, inter alia:
1. Code 39 / 3 of 9
2. Extended Code 39
3. Interleaved 2 of 5 ( ITF)
4. Code 128
