3. Open Source and Free Software

the freedom to run the program for any purpose. the freedom to study on how that program works and adopt it to your needs. the freedom to redistribute copies so you can help your neighbor. the freedom to improve the program and release your improvements to the public so that the whole community benefits .

a program is only free software if users have all of these freedoms. four kinds of freedom for the users of the software

outlook windows live mail

example of e-mail client

internet browsers(firefox and google chrome)

example of freeware

microsoft windows macOS chromeOS

example of operating system

haiku deck google slides microsoft powerpoint

example of presentation tools

getright and winzip

example of shareware

HTML(hyper text markup language)

example of source code

firefox internet explorer google chrome opera safari

example of web browser

abiword dropbox paper microsoft office google docs

example of word processing

operating system web browser e-mail client word processing presentation tools

examples open source software and free software application

richard stallman

he said the terms "free software" and "open source" stand for almost the same range of programs. however, they say deeply different things about those programs based on different things about those programs, based on different values. the free software movements campaigns for freedom for users of computing; it is a movement for freedom and justice. by contrast, the open-source idea values mainly practical advantages and does not contain for principles. this is why we do not agree with open source, and do not use that term.

source code

is a language or string of words ,numbers ,letters and symbols that a computer programmers uses.most computer users don't ever see only the programmers to can many too late to change how a piece of software a program or application works ​

open source software

is a type of computer software with source code that anyone can inspect, modify and enhance

shareware

is another form of commercial software, which is offered on a"try before you buy" basis.

open source software

is said to promote software reliability and quality by supporting independent peer review and rapid evolution of source code, as well as meeting the source code of software freely available

freeware

is software that offered free of charge but without the freedom to modify the source code and redistribute changes.

free software

it's a matter of the user's freedom to run copy, distribute, study, change and improve the software in any way they wish.

open source software

maybe develop in a collaborative public manner and community oriented development

free redistribution source code derive works integrity of author's source code no discrimination against persons or groups no discrimination against field of endeavor distribution of license license must not be specific to a product

open stores doesn't just mean access to the source code.the distribution terms of open source software must comply with the following criteria:

open source software and free software

programs whose license permit users the freedom to run the program for any purpose to study and modify the program and freely redistribute copies of the original or modified program. as majority of the hardware and software that allows the internet to function (web servers, file transmission protocol (FTP) servers, mail system) are open source software and free software