bar code based students attendance system with circuit diagrams? ....etc

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hi respected sir
i m student of engineering. i study in information technology in 5th semester. i will give one seminar on above topic plz give any material related to it.

my name is
jignasha shayara ....etc

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Abstract

The microcontroller based Barcode Decoder decodes code 39 .Code 39 was first barcode symbology to encode alphanumeric data strings .It is for this many industrial groups accepted this technology for their labeling requirements .It is widely used as standard for their labeling requirements .It is widely used in variety of applications. Hewlet- Packard's industrial Digital slot Reader is used here.

HP Barcode decoders provide an excellent scanning performance on a wide range of bar-coded cards and badges .When a bar coded card is s ....etc

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Barcode Reader

History

The first barcode scanner was employed and the first product barcoded in 1974.
In 1932 Wallace Flint started a project at the Harvard University Graduate School of Business Administration to better automate customer purchasing. As punch cards were all the rage at the time, the system they envisioned used a catalog of items with corresponding punch cards for each one. The customer would hand the cards to a clerk who would load them into a reader. The item would then be found and r ....etc

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hello sir,
i m SRH,Final year e&tc student.
u want complete information related to 'barcode technology'.
requesting you to send.. ....etc

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Barcode Based Employee Attendance

ABSTRACT
A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry analyzing the barcode's image data provided by the sensor and sending the barcode's content to the scanner's output port. The hand-held laser scanner does ....etc

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Abstract

The microcontroller based Barcode Decoder decodes code 39 .Code 39 was first barcode symbology to encode alphanumeric data strings .It is for this many industrial groups accepted this technology for their labeling requirements .It is widely used as standard for their labeling requirements .It is widely used in variety of applications. Hewlet- Packard's industrial Digital slot Reader is used here.

HP Barcode decoders provide an excellent scanning performance on a wide range of bar-coded cards and badges .When a bar coded card is s ....etc

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sir give me information about micrcontroller based barcode decoder ....etc

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hello sir/madam,
i am doing my final year b.tech in ece. and i would like to do this barcode decoder as my final year project. so please guide me with the material.

....etc

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This is my first post.

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....etc

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