http://users.livejournal.com/_shadow__/ (
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taki_net
2011-09-30 09:35 am (UTC)
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оффтоп, но близко и занятно:
http://en.wikipedia.org/wiki/Printer_steganography
Steganography is used by some modern printers, including HP and Xerox brand color laser printers. Tiny yellow dots are added to each page. The dots are barely visible and contain encoded printer serial numbers, as well as date and time stamps
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no subject
http://en.wikipedia.org/wiki/Printer_steganography
Steganography is used by some modern printers, including HP and Xerox brand color laser printers. Tiny yellow dots are added to each page. The dots are barely visible and contain encoded printer serial numbers, as well as date and time stamps