Inventos de herman hollerith en

His unconventional character and violent temper made it more and more difficult to run the company, with the result that it was sold to the Computer Tabulating Recording Company ina company that was renamed as the International Business Machines Corporation IBM in He acted as a consultant for the company for some years, but finally withdrew into private life.

Replica of the first Hollerith machine. The punched card: A revolutionary data career He developed his idea of an electrical counting and sorting system inwhile working for the U. More information Punched card systems - Early days of data processing. Hall of Fame.

Inventos de herman hollerith en: La máquina tabuladora permitió

Enobtuvo un cargo en la oficina de patentes de EE. Titulada "Art of Compiling Statistics", fue presentada el 23 de septiembre de ; la patente estadounidense El Tabulador de estaba cableado para funcionar con las tarjetas del censo de Contenidos mover a la barra lateral ocultar. Leer Editar Ver historial. Herramientas Herramientas. En otros proyectos.

From tohe worked in the U. Patent Office in Washington. This led Herman to create an column cardboard card, on which the questions could be answered with perforations in certain positions. The machine created by Hollerith was considered by many to be the first computer and was used by the U. Government for the census. Punching 56 million cards took 3 years.

The tabulating machine was patented in by Herman Hollerith.

Inventos de herman hollerith en: El Herman Hollerith ( - )

Inthe machine had a summing operation which allowed it to be used in the Central Railroads of New York accounting. Six years later, inhe created the Tabulating Machine Company to publicize his invention. Herman Hollerith was the first to use paper tape to encode the data. This tape consisted of fields marked with ink, in which data could be encoded, perforating it or not, depending on the data to be recorded.

Hollerith determined that data in specified locations on a card, arranged in rows and columns, could be counted or sorted electromechanically. Patent , [ 13 ] claim 2 of which reads:. The herein-described method of compiling statistics, which consists in recording separate statistical items pertaining to the individual by holes or combinations of holes punched in sheets of electrically non-conducting material, and bearing a specific relation to each other and to a standard, and then counting or tallying such statistical items separately or in combination by means of mechanical counters operated by electro-magnets the circuits through which are controlled by the perforated sheets, substantially as and for the purpose set forth.

Hollerith had left teaching and began working for the United States Census Bureau in the year he filed his first patent application. Patentwas granted on January 8, Hollerith initially did business under his own name, as The Hollerith Electric Tabulating Systemspecializing in punched card data processing equipment. The net effect of the many changes from the census: the larger population, the data items to be collected, the Census Bureau headcount, the scheduled publications, and the use of Hollerith's electromechanical tabulators, reduced the time required to process the census from eight years for the census to six years for the census.

He invented the first automatic card-feed mechanism and the first keypunch. The Tabulator was hardwired to operate on Census cards. A control panel in his Type I Tabulator simplified rewiring for different jobs. The s removable control panel supported prewiring and near instant job changing. Herman Hollerith died November 17, Hollerith cards were named after Herman Hollerith, as were Hollerith strings and Hollerith constants.

His great-grandson, the Rt. Contents move to sidebar hide. Article Talk. Read Edit View history. Tools Tools. Download as PDF Printable version. In other projects. Wikimedia Commons Wikidata item.

Inventos de herman hollerith en: The Leibniz Drum, know as "

American statistician and inventor. Hollerith c. Buffalo, New YorkU.