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What machine used punched cards to help with the 1890 census?
Hollerith
What type of ballot was used in Florida during the 2000 presidential election that led to hanging chads?
The ballots that produced the handing chads were paper tabulating machine cards, commonly called IBM cards or computer cards. The voter was supposed to punch out a perforated tab or chad to make his vote. The chad was supposed to be completely removed to create a clean hole in the card, but some people punched the card, but left the chad hanging. These hanging chads interfered with the machine used to read and tabulate the vote cards.
What is Hollerith's punch cards and tabulating machines?
They were used to record information
Who invented the first statistical machines using punched cards and started a company which eventually became IBM?
Herman Hollerith invented punch cards and used them with his tabulators in the Computing Tabulating Recording Corporation which later merged with two other companies to form IBM
The Census is when we count all the people in the country. We grew so much that by 1880 it took 7 years to count the population. This led to the invention of the?
The invention that resulted from the long and arduous process of conducting the 1880 census in the United States was the punch card tabulating machine. Herman Hollerith, an American inventor and statistician, developed the machine, which used punched cards to record and tabulate data. The punched cards allowed data to be recorded and sorted automatically, making the process of counting and analyzing data much faster and more efficient. Hollerith's invention became the basis for the modern computing industry, and he founded the Tabulating Machine Company, which later became IBM.
What was Joseph Marie's contribution to computers?
Joseph Marie Jacquard invented the Jacquard loom in 1804. It was a machine that weaved complex fabric design. It was the first machine that used punched cards. These (punched cards) were used to control the weaving process particularly the design of the clothes to be woven. In others words, he made a programmable loom,
Who invented the punch card machine?
Herman Hollerith was likely the person you're looking for. He invented and was awarded patents for a series of machines that used punched holes for a method of recording data. The true ancestor of our punch cards we think of today such as the IBM type 80. Hope this helps!
Who invented the Stenotype on punched paper strip in 1830?
Karl Drais, a German inventor, created the first Stenotype which used a punched paper strip in 1830. The machine was then known as a shorthand machine, the word Stenotype was not used until around 1910.
What were the challenges faced by the use of punched cards?
Cards were a fixed size. They were limited to 80 characters per card, so abbreviations were commonly used. This was one of the issues with the Y2K transition, years had been abbreviated with two characters instead of 4. A program had to be written into the computer through the cards. Each card represented a line of code. If a program had 1000 lines of code, that was 1000 cards that had to be punched out on the machine, and kept in order. If you dropped them, it took forever to resort them. Cards might not feed into the reader correctly, particularly if the weather was humid or damp. A bent card might jam up the machine, destroying some of the other cards, resulting in having to re-punch the cards.
Why do you use keyboards?
Because the computer can't read my thoughts and I need some way to tell it what I want it to do. When I first started using computers you used punched cards to do that and the keypunch that punched the cards had a keyboard but was not connected to the computer. You punched the deck using the keyboard on the keypunch, then took the deck to the computer's card reader.
Who is Joseph Jacquard?
Joseph-Marie Jacquard (1752-1834) was a French inventor who developed a system of punched cards used to program the operation of mechanical equipment. First used for the operation of mechanical looms in the textile industry, the punched cards became the prototype for the first mechanical computers.
What were the features of the Universal Automatic Computer developed by Eckert and Mauchly?
The UNIVAC became the first commercial computer made available to business and industry. This machine used magnetic tape to store input and output instead of the punched cards used in previous machines
