Download CBSE Class 12 Computer Science Free And Open Source Software Notes in PDF format. All Revision notes for Class 12 Computer Science have been designed as per the latest syllabus and updated chapters given in your textbook for Computer Science in Class 12. Our teachers have designed these concept notes for the benefit of Class 12 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 12 Computer Science for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 12 Computer Science given on studiestoday
Revision Notes for Class 12 Computer Science Free And Open Source Software
Class 12 Computer Science students should refer to the following concepts and notes for Free And Open Source Software in Class 12. These exam notes for Class 12 Computer Science will be very useful for upcoming class tests and examinations and help you to score good marks
Free And Open Source Software Notes Class 12 Computer Science
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
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CBSE Class 12 Computer Science Free And Open Source Software Notes
We hope you liked the above notes for topic Free And Open Source Software which has been designed as per the latest syllabus for Class 12 Computer Science released by CBSE. Students of Class 12 should download and practice the above notes for Class 12 Computer Science regularly. All revision notes have been designed for Computer Science by referring to the most important topics which the students should learn to get better marks in examinations. Studiestoday is the best website for Class 12 students to download all latest study material.
Notes for Computer Science CBSE Class 12 Free And Open Source Software
Our team of expert teachers have referred to the NCERT book for Class 12 Computer Science to design the Computer Science Class 12 notes. If you read the concepts and revision notes for one chapter daily, students will get higher marks in Class 12 exams this year. Daily revision of Computer Science course notes and related study material will help you to have a better understanding of all concepts and also clear all your doubts. You can download all Revision notes for Class 12 Computer Science also from www.studiestoday.com absolutely free of cost in Pdf format. After reading the notes which have been developed as per the latest books also refer to the NCERT solutions for Class 12 Computer Science provided by our teachers
Free And Open Source Software Notes for Computer Science CBSE Class 12
All revision class notes given above for Class 12 Computer Science have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 12 can rest assured that the best teachers have designed the notes of Computer Science so that you are able to revise the entire syllabus if you download and read them carefully. We have also provided a lot of MCQ questions for Class 12 Computer Science in the notes so that you can learn the concepts and also solve questions relating to the topics. All study material for Class 12 Computer Science students have been given on studiestoday.
Free And Open Source Software CBSE Class 12 Computer Science Notes
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Notes for CBSE Computer Science Class 12 Free And Open Source Software
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