COMPUTER FUNDAMENTALS

COMPUTER HISTORY AND EVOLUTION

DEVELOPMENT OF COMPUTERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This machine was used to count and sort information for the US census. It was the ____
A
Abacus
B
Hollerith’s Tabulating Machine
C
Analytical Engine
D
Difference engine
Explanation: 

Detailed explanation-1: -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-2: -It was successful, and Hollerith went on to found the Tabulating Machine Company, which later merged to become a company called IBM. Although tabulating machines are an early part of computer history, realize they are not considered computers. These machines only tabulated (counted), they were not programmable.

Detailed explanation-3: -The machine used a system of electrical and mechanical signals, and a set of wires positioned over pools of mercury, to incrementally count data on paper punch cards. A Hollerith machine is also known as a tabulating machine or Hollerith tabulator.

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