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open- Source software I'm sure a friend or at least a weird roommate has told

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you about it at some point or another often with a derisive snored about the

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fact that you're plunking away writing this video on the copy of Microsoft

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Office that you paid for but don't just bury your head in the

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expensive sand maybe there's actually something to it we'll start by

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describing the opposite of open- source software proprietary or closed Source

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this stuff follows the centuries old monetization model of gather or make

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something that people want and then sell it to them at a given price sort of

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through the use of mandatory licensing agreements that you implicitly sign when

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you run it proprietary software avoids

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selling you a copy of the software that after you've bought it then belongs to

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you instead they'll sell you a license

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to use the software that comes with a variety of restrictions including

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limiting what you may or may not use it for whether you can share it whether

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you're allowed to alter or reverse engineer it or even limiting the

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hardware it can be installed on Apple famously gives away their OS 10

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operating system updates for free as long as you meet the necessary Hardware

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requirements well that sounds like rubbish I should own the things I pay

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for is this how open source works sometimes actually the answer is a

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little more complicated than that it depends on the licensing that word again

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so we'll start with a special case that many folks confuse with open source

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called called Source available this applies to software that may have been

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published on a blog or otherwise entered the public domain but that the creator

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has not explicitly allowed modification

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or reuse without payment or even at all

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open source software by contrast is

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usually free software but these terms actually shouldn't be confused because

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free software is strictly speaking more of a philosophy and open source is just

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a development model where many collaborators contribute to a piece of

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software together to make it deliver as much value to the user as it can so

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let's talk advantages number one it's free to use and if like most open-

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Source programs it's licensed under the GPL it can actually be studied modified

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and shared as often as you want and with whomever you want as long as the

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derivative Works carry the same freedoms

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it's called copy left it's kind of a play on the copyright thing cool right

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on top of that open- Source Advocates will point to Quick implementation of

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new features and standards and the security and error-checking benefits of

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having a huge Community overlooking the development but there are two sides to

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every coin and detractors often point out that without the guiding hand of a

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senior VP of something or other it's easy to end up with underlying code

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that's as wonderful as a bacon flavored mouth guard and then a user interface on

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top of that that's flat out impossible for an average user to navigate not to

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mention that there's no tech support hotline reducing its usability once more

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so then why do developers contribute their valuable time to this movement

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well some do it out of a strong moral belief that everyone should have access

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to functional and secure software others

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do it just for fun or to share little projects they created in their spare

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time and see what happens to them as others continue to modify them and

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others have actually found ways to make money by giving the software away

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whether it's by charging for support charging for optimized Hardware or

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charging other companies sponsorship fees for access to their large install

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base and on the subject of charging

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company's sponsorship fees to access a large user base

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linda.com we're telling you about it they paid us for it watch and learn from

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