Open Source Software

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Open Source Software

• Jordan FahlsingKristian GaaslandColin
  KellyJacob Marty

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Freedoms

• There are 4 main freedoms that software must have
  to be considered Open Source.
• 1. The user must be able to use the software in
  any way they want to.
• 2. The user must know how the software works.
  The source code is critical for this condition.

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Freedoms Continued

• 3. Being able to redistribute the software to
  other people for personal use is the third
  freedom.
• 4. The last freedom is the ability to develop
  the program and give out new versions to anybody.

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Types of OSS

• Linux
• Free BSD
• GNU
• Mozilla Firefox
• Apache
• Python
• Perl
• Prone
• Jargon

GNU
Linux
Free BSD
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Are there restrictions with OSS?

• There is only one restriction with Open Source
  Software and that is nobody can do anything to
  limit the software for other people. In other
  words, everybody has the exact same access to it.
• The maker of the software cannot take away the
  license if you are using the software to do wrong.

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Misc. Information

• The term Open Source wasnt developed until the
  1990s when people realized that calling it Free
  Software didnt seem to be all that friendly to
  the big businesses.
• In 1985, a company called the Free Software
  Foundation (FSF) was founded and its main focus
  was to support the free software movement

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Security

• Most proprietary software companies use the
  method of security through obscurity which
  means that they protect their users by not
  letting people know how the program works. OSS
  is the exact opposite, they give out all the
  information on how the program was made, hoping
  that people will develop new ways of keeping it
  secure.

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Cons of Open Source Software

• One con to open source software and that is
  technical support. With most proprietary
  software, you will get a warranty and support
  when something goes wrong with your computer.
  With OSS, you can try getting technical support
  but you might not get any help at all.

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Main Features of Open Source Software

• Open Source Software is modifiable.
• You can redistribute the software to anyone you
  want.
• Can add or delete any part of the program.

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Advantages of Open Source Software

• The right to use the software in any way
• The right to redistribute modifications and
  improvements to the code
• There is no one with the power to restrict in a
  unilateral way how the software is used
• No per-copy fees can be asked for modified
  versions

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Disadvantages of Open Source Software

• There is no guarantee that development will
  happen
• There may be significant problems connected to
  intellectual property
• It is sometimes difficult to know that a project
  exist, and its current status.