The exact answer to this one is lost in the foggy muck of tradition, but history gives us a few clues. Like a great many things, Americans borrowed industrial paper production techniques from the ...

The common letter-sized paper used in Europe and in most locations outside of North America. At 8.3 x 11.7" (210x297mm), A4 paper is slightly narrower and a little longer than "A" size 8.5 x 11" paper ...

I have an HP DeskJet 812C. My dad has an HP DeskJet 990C. On his printer, with his drivers, I can select a paper size of "4x6 with tear-off tab," which is precisely what I have to print on (HP Premium ...