[Zope] Barcodes, magnetic cards, etc.
Curtis Maloney
curtis@umd.com.au
Thu, 24 Aug 2000 09:51:14 +1000
On Wed, 23 Aug 2000, Erik Enge wrote:
> [Curtis Maloney]
>
> | On Wed, 23 Aug 2000, Erik Enge wrote:
> | > What is the mainstream format for the codes when the are scanned in?
> |
> | I don't understand what you mean.
>
> Are the barcodes usually a collection of integers, characters, special
> characters or what?
>
Ah.. now we come to the interesting parts. (o8
Different barcode character sets contain different symbols. Mostly, however,
they will contain letters and numbers. Take a look at an item with a
barcode, and you will see a string underneath it. This is the human readable
form of the barcode.
> And, by the way, do you know if there exist a magnetic card scanner
> that plugs in to the PS/2? And if yes, which information would get
> from such a card? Just a number, or are there other possibilities?
>
What is on the card is, strangely enough, what is on the card. Magstripe
readers commonly interface to ps/2 keyboard ports via a 'chok' or 'wedge',
which just plugs inline with your regular keyboard.
> Thanks.
>
Not a problem.
Curtis.