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Introduction to Computer Science - Python

Introduction to Computer Science - Python. CSc 2010 Spring 2011 Marco Valero. Overview. What is Computer Science Programming Languages Python. What is Computer Science?. “Computer science is no more about computers than astronomy is about telescopes” – Edsger W. Dijkstra.

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Introduction to Computer Science - Python

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  1. Introduction to Computer Science - Python CSc2010 Spring 2011 Marco Valero

  2. Overview • What is Computer Science • Programming Languages • Python

  3. What is Computer Science? “Computer science is no more about computers than astronomy is about telescopes” – Edsger W. Dijkstra

  4. Computer Science • Study of information and computation • What does it mean to be computable • How can we describe computation • Algorithms • How can we describe algorithms • Languages

  5. Algorithms • Finite set of unambiguous instructions performed in a sequence to achieve a goal • makeCoffee: • Place filter in coffee machine • Scoop 4 teaspoons of coffee into filter • Take coffee pot and fill with 4 cups water • Fill coffee machine with water from pot • Place pot under percolator • Turn on

  6. makeCoffee pt 2 • makeCoffee(n): • Place filter in coffee machine • Scoop n teaspoons of coffee into filter • Take coffee pot and fill with n cups water • Fill coffee machine with water from pot • Place pot under percolator • Turn on

  7. More examples • washHair: • Wet hair • Take shampoo and squirt into hand • Lather hair with shampoo • Rinse hair • repeat

  8. Programming Languages • Machine and assembly Level • Higher level • Imperative, object oriented • Declarative, functional • Implementation • Compiled • Interpreted • Hybrid

  9. Python • High level, object oriented, imperative language • Hybrid implementation, CPython • Similar functionality / Code organized into modules • Myro module

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