Friday, January 07, 2005

Computers, Herman Hollerith's census tabulator

The U.S. Constitution mandates that a census of the population be performed every 10 years. The first attempt at any mechanization of the census was in 1870, when statistical data were transcribed onto a rolling paper tape displayed through a small slotted window. As the size of America's population exploded in the 19th century, and the number of census questions expanded, the

0 Comments:

Post a Comment

<< Home