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Development Environment

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Agenda

  • How to Write Software
  • Computer Architecture
  • Hello World
  • Submitting Assignments

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1. How to Write Software

Isn’t writing just… writing? Why is software different?

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How to Write Software

  • Software is typically written in text files (human-readable) that is converted into programs that can be executed by a computer
    • There are visual programming tools but they tend to be limited in scope and capability
  • In this course we wanted to improve accessibility
    • Settled on codehs.com as the standard development environment

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2. Computer Architecture

Making computers work

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Computer Architecture

  • Computer architecture is approximately layered
  • Applications cannot access hardware directly
    • Must go through the operating system
  • Replit exists within a web browser (also an application)
    • Our code is one layer further removed from the hardware
    • Requests for hardware access (sound, graphics, network) become more challenging

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3. Hello World

The first program is always the same

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Hello World

  • The standard first program in any language is called Hello World
    • Print “Hello world!” to the console
  • We will make Hello World in Python

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Join Codehs

  • Join codehs using the code on our website
  • Create an account if you don’t already have one
  • Use your board-assigned email
  • Use the sandbox to make Hello World in the language of your choice

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4. Submitting Assignments

How about something a little more complicated?

But not too complicated…

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Assignment Questions

  • There are two assignments and some group assignments
  • Most have automated tests
    • You still have to create your own tests!
    • One test per code branch to a max of 10

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Assignment Questions

  • Start with
    • L1.1 Submitting Assignments
  • Solve the problem and submit your solution after it has passed all the tests. Ensure that your code has conformed to the “Assignment Formatting” document

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Credits

Special thanks to all the people who made and released these awesome resources for free:

  • Presentation template by SlidesCarnival

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Diagrams and infographics

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