003+09-27-11+-+Chapter+1

003+09-27-11+-+Chapter+1 - Welcome to CMPE-003 Personal...

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Slide 1 Welcome to CMPE-003 – Personal Computer Concepts Syllabus at: http://courses.soe.ucsc.edu/courses/cmpe 3/Fall11/01
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Slide 2 Chapter 1 Computing Before Computers Charles Babbage (1791-1871) 19th-century mathematics professor at Cambridge Difference engine required 25,000 parts, weighed 15 tons Never finished it The Analytical Engine (1843) Mother of all computers, conceived of by Charles Babbage Could (theoretically) be programmed with punched cards Could carry out any calculation to 20 digits of accuracy
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Slide 3 Chapter 1 Computing Before Computers Augusta Ada King, Countess of Lovelace Interpreter and promoter of Babbage’s visionary work Wrote a plan for using the Analytical Engine to calculate Bernoulli sequences Often called the first computer programmer
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Slide 4 The First Real Computers: 1939: Konrad Zuse completed the first programmable, general-purpose digital computer “I was too lazy to calculate so I invented the computer” – Zuse Offered to build the German military a machine to crack Allied codes. The Nazis declined his offer. Chapter 1 Computers in Perspective: An Evolving Idea (continued)
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At about the same time, the British government was assembling a top-secret team of mathematicians and engineers to crack Nazi military codes 1943: The team, led by mathematician Alan Turing and others, completed Colossus, considered by many to be the first electronic digital computer Turing was key in breaking Enigma – the German military’s chief cipher machine.
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003+09-27-11+-+Chapter+1 - Welcome to CMPE-003 Personal...

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