FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Hollerith created an electromechanical tabulating machine to process the census data. It worked by punching data into paper cards, then inserting them into the machine. Inside the machine, small metal pins would pass through the holes into a vial of mercury, completing an electrical circuit.

Detailed explanation-2: -Herman Hollerith’s punched card tabulator transformed the census process-and information processing in general-beginning with the 1890 US census. The machine was able to collect and count data more rapidly and accurately than manual processes had allowed in the past.

Detailed explanation-3: -The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards. Invented by Herman Hollerith, the machine was developed to help process data for the 1890 U.S. Census.

Detailed explanation-4: -Data is stored on the card by punching holes, which represent letters or numbers, in specific column locations that relate to the information being recorded. To read this data, the card must be run through a machine that can detect or ‘sense’ the location of the holes.

Detailed explanation-5: -Punched cards were invented about 1750 for the control of textile looms, and were adopted for use in Herman Hollerith in the 1890 US census.