Software is protected by copyright as a literary work.
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Copyright protection for software protects the expression of ideas in the code, while patent protection for software protects the functionality or process of the software. Copyright is automatic upon creation, while a patent must be applied for and granted. Copyright protection lasts for the life of the author plus 70 years, while a patent typically lasts for 20 years.
Public domain software
The Copyright Designs and Patents Act defines patents for computer hardware and software, and copyright on software.
Software copyright protects the expression of an idea in a software program, such as the code and structure, while patent protection covers the functionality or process that the software performs. Copyright is automatic upon creation, while a patent must be applied for and granted by a government agency. Copyright protection lasts for the life of the author plus 70 years, while a patent typically lasts for 20 years.
Copyright term for software in India is 60 years from the date of publication.
Software copyright is a new extension of copyright law to machine-readable software. It is used by proprietary software companies to prevent the unauthorized copying of their software caca
In IT, copyright most often applies to software, which can be protected by both copyright AND patent law. Most software-related copyright issues are addressed in detail in end user licensing agreements.
Copyright infringement, also called piracy.
Because registration is not required for protection, there is no way to tell how much software has been protected by copyright. On the other hand, since protection is automatic, you can also say that all software is protected by copyright.
Commercial Software
Virtually all software is protected by copyright--even Linux (Linux just has a really broad license). There is also a program called Official Copyright Software that helps creators through the process of registering their works.