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Demo session


* Scheme in General, simple & elegant, express many ideas etc.


* Quick survey:

  - How many people with machines at home

  - How many with Windows, Linux, Macs

  - Memory sizes


* General info - mail, web page, newsgroup - show & test newsgroup.


* Usually interpreted - difference from compiled languages (compare to
  Javascript).  Mention byte-compiled code - portable, just for load speed,
  same principle as Java VM.


* Installing: how to get & install, show install page.


* General diagram of the applications etc:

  - MzScheme - a Scheme implementation;

  - MrEd - a C application that uses wxWindows for a portable GUI environment;
    with some stuff written in Scheme;

  - DrScheme - a MrEd application (written only in Scheme);

  - Swindle - an extension on top of MzScheme for oop and more;

  - DrSwindle - a modification of DrScheme that works with Swindle.

  Show examples where things are and running them.


* Documentation:

  - Scheme ultimate doc - R5RS (HTML, PostScript, text, R4RS with Rice);

  - MzScheme (HTML with instellation, on-line from Rice);

  - More PLT documents from Rice - MrEd, DrScheme etc;

  - Swindle - description.txt and .html.


* Running the Environment:

  - Show version number, make all run and see their own numbers;

  - Automatic updating for bugs etc:
    - do it now,
    - explain why all was ok for me (Swindle.plt/.zip always updated),
    - restarting afterwards;

  - Entering & evaluating expressions;

  - The edit buffer & the interactions buffer:
    - modifying things in the two places,
    - the execute button to resetn environment & synchronise,
    - error detection located in both places,
    - Check syntax button & the binding arrows;

  - Go over menus quickly,
    - Show preferences
    - Language stuff;

  - Language levels:
    - Usage in exercises,
    - Show differences;

  - Using lib files for problem sets;

  - Running the snowflake example (warn about bug):
    - Look at the file;
    - Eval (snowflake 500 4) for fun;
    - Write a simple looping function that repeats with several sizes.