0909 - Introduction to Programming Languages and Techniques...

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Introduction to Programming Languages and Techniques CIS120 Fall 2009 Benjamin Pierce
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INTRODUCTIONS 9/9/09 CIS 120, Fall 2009 1
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Benjamin Pierce 9/9/09 CIS 120, Fall 2009 2
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Teaching Assistants 9/9/09 CIS 120, Fall 2009 3 Jay Fiddelman
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Teaching Assistants 9/9/09 CIS 120, Fall 2009 4 Daniel Wagner
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Teaching Assistants 9/9/09 CIS 120, Fall 2009 5 Brent Yorgey
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Teaching Assistants 9/9/09 CIS 120, Fall 2009 6 Seth Shannin
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Teaching Assistants 9/9/09 CIS 120, Fall 2009 7 Anna Filatova
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Teaching Assistants 9/9/09 CIS 120, Fall 2009 8 Alexey Komissarouk
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Introduce yourself Name, year, major Where you are from Activities and interests outside computer science 9/9/09 CIS 120, Fall 2009 9
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How Many of You... Are CIS majors? DMD major? CD? Otherwise in SEAS In the College, Wharton, Nursing? Are freshman/ sophmores / juniors / seniors? Took CIS 110 / Didn’t take CIS 110 Have programmed in... Java C# C / C++ Scheme / ML / F# / Haskell / Scala Python / Ruby / Lua JavaScript VB Perl PHP Something else? 9/9/09 CIS 120, Fall 2009 10
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Getting a sense of the numbers... How many are not currently registered for CIS120 but intend to register? 9/9/09 CIS 120, Fall 2009 11
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WHAT THE COURSE IS ABOUT 9/9/09 CIS 120, Fall 2009 12
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9/9/09 CIS 120, Fall 2009 What is this course about? Problem solving with Java & Python Programming concepts Data types, abstraction, essential data structures, libraries Programming designs Iterative, OO, functional, reactive Programming practices Specification, documentation, testing, debugging 13
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9/9/09 CIS 120, Fall 2009 Problem solving with Java How to find information in the web? Solution: a search engine Process the data Represent the data Search the data Display the results Caveat: A lot more in a real search engine Huge scale Redundancy Spam resistance 14
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9/9/09 CIS 120, Fall 2009 Dangers http://xkcd.com/369 15
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9/9/09 CIS 120, Fall 2009 The essence of search knitting “knitting” 1 bug 2 knitting 3 China 4 frog knitting 16
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9/9/09 CIS 120, Fall 2009 “knitting” 17
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Programming Concepts: Abstraction 9/9/09 CIS 120, Fall 2009 Completely adequate simple abstraction Complex circuitry of op amp 18
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Nested Abstractions: Preamp 9/9/09 CIS 120, Fall 2009 Two op amps plus many parts One stereo input, one stereo output, three parameters
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