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A comment on Show HN: We made a web-based cash register. Parent comment

Re:Show HN: We made a web-based cash register by VMG on Sunday March 20, 2011 @06:48AM (#2345995)
AFAIK barcode scanners use the keyboard interface, meaning scanning a code just sends some keystrokes to the PC.
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Re:Show HN: We made a web-based cash register by chopsueyar on Sunday March 20, 2011 @12:15PM (#2346576)
Sometimes referred to as a "wedge" for a PS/2 keyboard port. USB models can "emulate" a keyboard.
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