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 Programming language comparison.
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.. contents::
   :local:

About.
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* http://en.wikipedia.org/wiki/Measuring_programming_language_popularity
* http://en.wikipedia.org/wiki/Comparison_of_programming_languages
* http://en.wikipedia.org/wiki/Comparison_of_programming_languages_%28basic_instructions%29

http://www.top500.org/
  Top 500 computers.

Lang popularity.
================

http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html
  TIOBE Programming Community Index
http://lang-index.sourceforge.net/
  The Transparent Language Popularity Index
http://www.google.com/trends
  Google trends (history of search request count).
http://www.indeed.com/jobtrends
  Trends in vacancies by keywords.
http://stackoverflow.com/questions/48997/what-programming-language-is-most-popular-today
  what-programming-language-is-most-popular-today

Performance.
============

http://benchmarksgame.alioth.debian.org/
  The Computer Language Benchmarks Game
http://www.techempower.com/benchmarks/
  Web Framework Performance Comparison

openhub.
========

Line of code comparison.

https://www.openhub.net/languages
  All Languages.
https://www.openhub.net/languages/compare
  User selected.

Code examples.
==============

http://c2.com/cgi/wiki?EveryCombinationInManyProgrammingLanguages
  Every Combination In Many Programming Languages

Actual comparing:

http://hyperpolyglot.org/
  Commonly used features in a side-by-side format.
https://github.com/clarkgrubb/hyperpolyglot
  hyperpolyglot source code
http://www.99-bottles-of-beer.net/
  99 bottles of beer. Many implementation of one simple task.
http://rosettacode.org/
  Rosetta Code. Solutions to the same task (near 600) in as many different
  languages as possible.

Lang cost.
==========

http://archive.adaic.com/intro/ada-vs-c/cada_art.html
  Comparing Development Costs of C and Ada