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PreElect Comp Hist

Graves Pre-Electronic Computer History

What pre-electronic computer do we credit the Chinese with first inventing? The abacus
What did the abacus do? It aided counting
What did French mathematician Blaise Pascal invent? The Pascaline
What was the Pascaline? It was a mechanical calculator (accurate to 8 digits) that jammed often
What did Charles Babbage first invent that was important to computing? An advanced mechanical calculator.
What was special about Babbage's advanced mechanical calculator? It could do different types of calculations because it could be programmed with punch cards.
Who programmed the punch cards for Babbage's machine? Ada Byron (also known as Lady Lovelace)
Who is known as the Father of Computers? Charles Babbage
Who is known as the First Computer Programmer? Ada Byron (also known as Lady Lovelace)
What did Herman Hollerith invent to count the 1890 census within 6 weeks? The Tabulating Machine
What did Herman Hollerith's machine use to calculate the population of the US in 1890? It used punch cards for data and electricity to count and show results
Created by: EdwardgRM