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#33 | ||||||
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Don't expect too much from a 240,000 range factory letter. The IBM card is the only research vehicle and they don't usually include much information. There are exceptions, however. We'll be looking for those pictures.
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#34 | ||||||
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punch cards in 1938? how cool was that?
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#35 | ||||||
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the 1880 census took seven years to compile, there was a good chance the 1890 would not be done before the 1900 started, to speed it up, the punch card concept (originally for programming looms) was proposed by Hermann Hollerith, this kicked off the Tabulating Machine Company which became IBM about 20 years later.
odd fact -- the size of the card had to be comfortable to handle - so it was matched to the old greenback paper money
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"If there is a heaven it must have thinning aspen gold, and flighting woodcock, and a bird dog" GBE |
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#36 | ||||||
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oh: interesting history.
do you recall if the coding system used for these early cards was based on an 8 bit word or something else? |
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#37 | ||||||
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The late Remington Parker cards were not punched with data on the gun in question. All data was hand written. They were used because they were there. We found them in shoe boxes where they probably still reside.
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#38 | |||||||
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Quote:
![]() a series of zone and digits - the top three rows of the card were the zones, the next nine where the digits - so - first zone & first digit was the letter A , zone 1 digit 2 a B and so on. there were 80 columns in a card digits only were numbers - odd combinations where special charaters, this code was later able to be translated simply into hexidecimal for the 16 base code in electronic computers. any more detail that that and most folks will glaze over just before their foreheads hit the key board
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"If there is a heaven it must have thinning aspen gold, and flighting woodcock, and a bird dog" GBE |
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#39 | ||||||
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Hollerith was the guy that came up with the idea
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#40 | ||||||
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yes he was - did you see post #35?
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"If there is a heaven it must have thinning aspen gold, and flighting woodcock, and a bird dog" GBE |
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