Download Class 12 Informatics Practices Concept Summaries: CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02
Review targeted revision notes for Class 12 Informatics Practices with the CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02. Built according to official educational guidelines for the 2026-27 academic year, these downloadable summaries for Free And Open Source Software support daily study and last-minute exam readiness.
Access Free And Open Source Software Notes and Study Material
View or download the dedicated Free And Open Source Software revision resource below. Engaging with these structured concept notes daily ensures continuous academic progress and mastery of the 2026-27 curriculum for Informatics Practices.
Chapter - 1
FREE AND OPEN SOURCE SOFTWARE
Free Software
Definition by Richard Stallman’s:
It means software is freely accessible, free to use, changed, improved, copied, distributed without any payments.
Four kinds of freedom
► Freedom to run the program for any purpose
► Freedom to redistribute copies.
► Freedom to study how the program works
► Freedom to improve the program and release your improvements to the public.
Open Source Software
Definition: The categories of software / programs whose licenses do not impose much conditions.
Features:
1. Freedom to run and use the software
2. Modify the program
3. Redistribute copies of either original or modified program (without paying royalties to previous developers). It can be freely used for modifications, but it does not have to be free of charge. Its source code is available. Criteria for the distribution of open source software
1. Free distribution
2. Source code
3. Derived works
4. Integrity of the Author’s Source code
5. No discrimination against fields of endeavor.
6. Distribution of License
7. License must not be specific to a product
8. License must not restrict other software
FOSS (free and open software)
Free software- no payments
Open source software- for technical progress
OSS and FLOSS
► OSS- Source code is available
(open source modified and redistributed software) free of cost or with nominal charge.
► FLOSS- (free libre and open source software)
FSF( free software foundation)
Founded by Richard Stallman in 1985 to support GNU project.
Non-profit organization created for the purpose of supporting free software movement
GNU (free and open source)
Objective : To create a system compatible to unix but not identical with it.
Now it offers a wide range of software, including applications apart from operating system.
Proprietary software (neither open nor freely available)
Definition-
Its use is regulated and further distribution and modification is either forbidden or requires special permission by the supplier Source code is not available.
Freeware
► Free of cost
► Copying and further distribution but not modification.
► Source code is not available
► Eg. MS IE
Shareware
► Right to redistribute copies
► After a certain period of time license fee should be paid.
► Source code is not available.
► Modifications is not possible.
Objective- to increase user’s will to pay for the software. Limits functionality after a trial period of 1-3 months.
Some Softwares
LINUX
► Linux: - free and open source software.
► It can be downloaded from www.linux.org
► Linux is a part of popular webserver program LAMP (Linux,apache,MySql, PHP).
Mozilla
► Freeware
► No source code available
► free internet software
It can be download from www.mozilla.org
Apache Server
► Apache HTTP server is an open source web server.
► It is component of LAMP.
It can be downloaded from www.apache.org
Please refer to attached file for CBSE Class 12 Informatics Practices Free and Open Source Software Study Notes
Free study material for Informatics Practices
Revision Notes and Key Concepts for Class 12 Informatics Practices Free And Open Source Software
Quick Revision Notes: Free And Open Source Software (CBSE)
Access structured revision notes for Free And Open Source Software designed in alignment with the latest CBSE curriculum for Class 12 Informatics Practices. These summaries help clarify core themes and support effective daily study.
Expert Study Material for Class 12 Informatics Practices
Cross-reference your comprehension with comprehensive NCERT solutions for Class 12 to ensure absolute clarity across all sub-topics in this chapter.
Complete Your Chapter Revision
Follow up your revision by attempting the interactive online Informatics Practices MCQ test and practice worksheets for this chapter to verify your mastery. All platform resources are free to access.
FAQs
You can download the teacher prepared revision notes for CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02 from StudiesToday.com. These notes are designed as per 2026-27 academic session to help Class 12 students get the best study material for Informatics Practices.
Yes, our CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02 include 50% competency-based questions with focus on core logic, keyword definitions, and the practical application of Informatics Practices principles which is important for getting more marks in 2026 CBSE exams.
Yes, our CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02 provide a detailed, topic wise breakdown of the chapter. Fundamental definitions, complex numerical formulas and all topics of CBSE syllabus in Class 12 is covered.
These notes for Informatics Practices are organized into bullet points and easy-to-read charts. By using CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02, Class 12 students fast revise formulas, key definitions before the exams.
No, all study resources on StudiesToday, including CBSE Class 12 Informatics Practices Free And Open Source Software Notes Set 02, are available for immediate free download. Class 12 Informatics Practices study material is available in PDF and can be downloaded on mobile.