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Scanning

When any person enters any shop and buy some items then goes to where he
pays the prices of his items, the person there make scanning to each item to
know what's the price?
I am asking how this is done? what's program Language used to create this
program scanning ?
and what's the name of this thing that I can read to know this secret?
From Beginner.
=============== ============

Nov 15 '07 #1
1 1601
I gather you are talking about the use of a device such as one shown here.

http://www.nextag.com/wedge-scanner/search-html

That being the case, these devices plug into the users computer either
through the USB or intercepting the keyboard wire. At that point, they are
essentially the same thing as a keyboard....sim ply an input device.

The barcodes that they read come in a number of "symbologie s", most of which
are standard and the scanner simply translates the barcode into text.

Hope that helps.
"Fine" wrote:
When any person enters any shop and buy some items then goes to where he
pays the prices of his items, the person there make scanning to each item to
know what's the price?
I am asking how this is done? what's program Language used to create this
program scanning ?
and what's the name of this thing that I can read to know this secret?
From Beginner.
=============== ============

Nov 15 '07 #2

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