Archived posting to the Leica Users Group, 2010/08/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]aren't nixies for display? when i was in high school, my dad was a Columbia professor and he had some kind of array processor racked up with his HP1000 minicomputer. That array processor had nixies and it was a beauty! Anyone who is too young to know what a nixie tube is, here's an product highlighting these gems: http://www.amazon.com/Nixie-Clock-Factory-Assembled-Tested/dp/B001M1GJPG -rei On 08/10/2010 12:06 PM, Lawrence Zeitlin wrote: > Henning writes: > > "Using the metric system because we have ten > > fingers are related, but not the reason. Our > > common numbering system is base 10, and that is > > why metric makes sense. Our numbering system is > > base 10 because we have 10 fingers. Therein lies > > the logic." > > > Logical, perhaps, but not practical. Many other systems of measurement in > common use use bases other than 10. Computer science uses the binary system > (base 2) since a switch, relay, or transistor is either open or closed. > Close behind is the octal system (base 8) for measurement of text in bytes > and the hexadecimal system (base 16). Merchants use the duodecimal system > (base 12) since a dozen of anything can be divided by factors 1, 2, 3, 4, > and 6, making it easy to sell things by the fractional dozen. Thirty five > mm > film is sold in commercial lengths of 12, 24, and 36 exposures. Even > Lincoln > calculated historical time by the score (base 20) in the Gettysburg Address > phrase "Four score and seven years ago." And, of course, we recently > celebrated the millennium (base 1000). > > > On a personal note, the first computer that I personally programmed was the > Burroughs 101, a base 10 machine that used 10 step Nixie tubes as a > calculating element. The machine existed during the heyday of 10 digit IBM > cards. While it made interpretation of the results easy for a ten fingered > operator, the machine was soon eclipsed by much faster binary machines. So > it goes. > > > Larry Z > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information