4 messages in edu.ku.nhm.mailman.taxacom, Bar Codes in tracking samples
FromSent OnAttachments
JAMES BLAKEAug 7, 1995 9:31 pm 
Julian HumphriesAug 8, 1995 9:37 am 
Julian HumphriesAug 8, 1995 6:29 pm 
Karen WilsonAug 9, 1995 7:47 am 
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Subject:, Bar Codes in tracking samplesActions...
From:Julian Humphries (jm@CORNELL.EDU)
Date:Aug 8, 1995 6:29:29 pm
List:edu.ku.nhm.mailman.taxacom

Julian Humphries wrote:

Everybody assumes barcodes are something special. I predict with 3-4 years they will be obsolete, that scanners will read Times Roman numbers as well as they read |||\|/!! (put your favorite barcode here).

In fact, another technology is already being developed by the South Africans, as I recall from a message last year: use of a microchip for each box/bottle/specimen. The codes could then be read by running a reader across the storage shelving. Perhaps someone else remembers more of the details?

I checked into this technology, too, its call PIT (passive interogative transitors). They use it to track stocked salmon and the like. But, two problems: cost $2-4 (US dollars) each and they only hold about 96 bits at best, about 12 bytes. Enough for a museum abbreviation and number, but not enough for real data. I tried to convince a mfg. we might buy a few million, but he said even then, we would be talking 75c each. They have to be encoded is the problem and that is a custom operation. Maybe in a few years this will be developed further. One nice feature, they are pretty resistant to fluids (but I couldn't get 30 year guarantees in alcohol!).