To: Frank A. Coluccio who wrote (2425 ) 1/4/2000 2:58:00 PM From: John Biddle Read Replies (2) | Respond to of 5853
I think that going forward all Internet traffic should be measured in terms of GLOCs. A GLOC is a unit of measurement which I coined and offered to George here about a year or so ago. GLOC stands for Gilder Library of Congress. I remember you posting this before, but I didn't remember the Gilder part, just the LOC. I don't really understand where George fits into your idea. It isn't his library, and he's not responsible for many of the books in it. Allow me to tweak your idea a little. How about just calling it a Gilder, and make it equal to a digital LOC. According to the library's own website, "The collections now include approximately fifteen million books, thirty-nine million manuscripts, thirteen million photographs, four million maps, more than three and a half million pieces of music, and more than half a million motion pictures." My assumptions (please feel free to alter): 1. Average book has 300 pages of 35 lines of 12 words of 5 letters. 2. Average typewritten manuscript is equal to a book and 90% are typed. 10% are hand written and must be digitized to retain their value. 3. Photographs must be digitized at very high quality to retain their value, say 3200*2400 average using true color. 4. Maps are to be treated as photos, but are significantly larger. 5. Music can be reasonably stored using current CD technology, and average piece of music takes 25% of a CD. 6. Average motion picture is 30 minutes long, 90% are color, and have 24 frames per second, each of which must be digitized as a photograph for good reproduction. The sound from the picture would fit on half a CD. Books 15M * 300 * 35 * 12 * 5 ~ 9 * 10^12 TW Manuscripts 39M * .9 * 300 * 35 * 12 * 5 ~ 22 * 10^12 HW Manuscripts 39M * .1 * 3200 * 2400 * 4 ~120 * 10^12 Photos 13M * 3200 * 2400 * 4 ~399 * 10^12 Maps 4M * 6400 * 4800 * 4 ~492 * 10^12 Music 3.5M * 640M * .25 ~560 * 10^12 Motion Pix 0.5M*30*60*24*3200*2400*4 ~664 * 10^15 MP Sound 0.5M * 640M * .5 ~160 * 10^12 Total ~666 * 10^15 So, one Gilder ~ 666 Exabytes. One interesting point to this is to see that >99.7% of everthing is motion pictures!