Open-source software (OSS)

1. OSS is computer software that is available in source code form - no copyright holders

2. License permits users to study, change, improve and at time to distribute the software

3. Open source software is often developed in a public, collaborative manner

4. Open source standards and Open Source Initiative:

5. Recently reported open-source software has saved consumers $60 billion per year



1. WordPress was born out of a desire for an elegant, well-architectured personal publishing system built on PHP and MySQL and licensed under the GPLv2 (or later). It is the official successor of b2/cafelog.

2. WordPress started in 2003 with a single bit of code to enhance the typography... it has grown to be the largest self-hosted blogging tool in the world, used on millions of sites and seen by tens of millions of people every day.

3. Everything from the documentation to the code itself, was created by and for the community. WordPress is an Open Source project, with hundreds of people all over the world working on it.

4. It is free to use it for anything from your cat's home page to a Fortune 500 web site without paying anyone a license fee..


PHP is a general-purpose scripting language

1. PHP was designed for web development to produce dynamic web pages.

2. PHP originally stood for "Personal Home Page", it is now said to stand for "PHP: Hypertext Preprocessor", a recursive acronym.

3. PHP is free software released under the PHP License; it is incompatible with the GNU General Public License (GPL) due to restrictions on the usage of the term PHP.

4. PHP code is embedded into the HTML source document and interpreted by a web server with a PHP processor module, which generates the web page document.

5. PHP can be deployed on most web servers and as a standalone interpreter, on almost every operating system and platform free of charge.

6. PHP is installed on more than 20 million websites and 1 million web servers.

PHP was originally created by Rasmus Lerdorf in 1995. The main implementation of PHP is now produced by The PHP Group and serves as the de facto standard for PHP as there is no formal specification.

MySQL ( /maɪ ˌɛskjuːˈɛl/ "My S-Q-L",[1] also commonly /maɪ ˈsiːkwəl/ "My Sequel")

1. MySQL is a relational database management system that runs as a server providing multi-user access to a number of databases.

2. Applications which use MySQL databases include: Joomla, WordPress, MyBB, phpBB, Drupal...

3. MySQL is used in some of the most frequently visited web sites on the Internet, including Flickr,, YouTube, Wikipedia, Facebook...

4. The MySQL development project has made its source code available under the terms of the GNU General Public License, as well as under a variety of proprietary agreements. MySQL was owned and sponsored by a single for-profit firm, the Swedish company MySQL AB, now owned by Oracle Corporation.