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Public-domain software

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1768:"The origin of SPICE traces back to another circuit simulation program called CANCER. Developed by professor Ronald Rohrer of U.C. Berkeley along with some of his students in the late 1960s, CANCER continued to be improved through the early 1970s. When Rohrer left Berkeley, CANCER was re-written and re-named to SPICE, released as version 1 to the public domain in May of 1972. Version 2 of SPICE was released in 1975 (version 2g6—the version used in this book—is a minor revision of this 1975 release). Instrumental in the decision to release SPICE as a public-domain computer program was professor Donald Pederson of Berkeley, who believed that all significant technical progress happens when information is freely shared. I for one thank him for his vision." 1448:
license to do so. :-) For the record, I have already voted +1 to approve the CC0 public domain dedication and fallback license as OSD compliant. I admit that I have argued for years against the "public domain" as an open source license, but in retrospect, considering the minimal risk to developers and users relying on such software and the evident popularity of that "license", I changed my mind. One can't stand in the way of a fire hose of free public domain software, even if it doesn't come with a better FOSS license that I trust more.
20: 76:, which most countries have signed, an author automatically obtains the exclusive copyright to anything they have written, and local law may similarly grant copyright, patent, or trademark rights by default. The Convention also covers programs, and they are therefore automatically subject to copyright. If a program is to be placed in the public domain, the author must explicitly disclaim the copyright and other rights on it in some way, e.g. by a 462: 473: 325:) or to software distributed and usable free of charge (freeware) as "public-domain" is therefore incorrect. While public domain gives up the author's exclusive rights (e.g. copyright), in free software the author's copyright is still retained and used, for instance, to enforce copyleft or to hand out permissive-licensed software. Licensed software is in general 1807:: "though our disk labels show a copyright notice, up until this issue we stated right on our policies page (page 2) that our programs are 'public domain; free to copy, not to sell'. This notice goes back about 4 years – a popular phrase originally designed to prevent one's program from being 'acquired' by someone in the software business". 1783:"Space War (Asteroids) - Steve Russell – MIT - Tech Model Railroad Club (TMRC) - PDP-1 In 1961, the game that would eventually become Asteroids started life, humbly, at MIT (Massachusetts Institute of Technology). It was also open source, so the code was public domain, available for anybody to utilize and improve upon." 443:. Due to the decades-long copyright protection granted by the Berne Convention, no software has ever passed into the public domain by leaving copyright terms. The question of how quickly works should pass into the public domain has been a matter of scientific and public debates, as well as for software like 1416:
on cr.yp.to: "Most rights can be voluntarily abandoned ('waived') by the owner of the rights. Legislators can go to extra effort to create rights that can't be abandoned, but usually they don't do this. In particular, you can voluntarily abandon your United States copyrights: 'It is well settled that
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In the 1980s, a common way to share public-domain software was by receiving them through a local user group or a company like PC-SIG of Sunnyvale, California, which maintained a mail-order catalog of more than 300 disks with an average price of US$ 6. Public-domain software with source code was also
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and its different versions, BSD, LGPL (i.e. GNU Lesser General Public License) and its different versions, ASL (i.e Apache Software License) family, MPL (i.e. Mozilla Public License). Apart from these licenses there are projects who has submitted themselves into Public Domain and that number is 137.
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While IBM's policy of withholding source code for selected software products has already marked its second anniversary, users are only now beginning to cope with the impact of that decision. But whether or not the advent of object-code-only products has affected their day-to-day DP operations, some
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The public-domain "free sharing" and donationware commercialization models evolved in the following years to the (non-voluntary) shareware model, and software free of charge, called freeware. Additionally, due to other changes in the computer industry, the sharing of source code became less common.
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In the above bar-chart I have counted GPL and its different versions as one family, and I did the same with LGPL too. From this diagram it is very much clear that the MIT License is the most used license, with a total number of use case of 2706. Therefore comes GPL (i.e GNU General Public License)
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The case you referenced in your email, Hampton v. Paramount Pictures, 279 F.2d 100 (9th Cir. Cal. 1960), stands for the proposition that, at least in the Ninth Circuit, a person can indeed abandon his copyrights (counter to what I wrote in my article) – but it takes the equivalent of a manifest
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approach relies on the enforceability of the copyright to be effective. Copyleft free software, therefore, shares many properties with public-domain software, but does not allow relicensing or sublicensing. Unlike real public-domain software or permissive-licensed software, Stallman's copyleft
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Many PD software authors kept the practices of public-domain release without having a waiver text, not knowing or caring for the changed copyright law, thus creating a legal problem. On the other hand, magazines started in the mid-1980s to claim copyright even for type-in programs that were
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In contrast to commercial software is a large and growing body of free software that exists in the public domain. Public-domain software is written by microcomputer hobbyists (also known as "hackers") many of whom are professional programmers in their work
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rights gained under the Copyright Act may be abandoned. But abandonment of a right must be manifested by some overt act indicating an intention to abandon that right. See Hampton v. Paramount Pictures Corp., 279 F.2d 100, 104 (9th Cir. 1960).' " (2004).
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The entire library of art assets from the game, has been made freely available, dedicated to the public domain. Code from the game client is included to help developers work with the assets. All of it can be downloaded and used by anyone, for any
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on eckhardkruse.net: "Ich habe das Programm als Public Domain veröffentlicht (die Unterscheidung in Freeware, Shareware usw. gab es damals nicht), mit der Bitte um eine 20 DM Spende. Dafür gab es dann die erweitere Version und den Quellcode." (in
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and others. In 2012, the status was finally resolved when Rosen changed his mind and accepted the CC0 as an open-source license, while admitting that, contrary to previous claims, copyright could be waived, as backed by a
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From the software culture of the 1950s to 1990s, public-domain (or PD) software were popular as original academic phenomena. This kind of freely distributed and shared "free software" combined the present-day classes of
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Implementation Act of 1988 (and the earlier Copyright Act of 1976, which went into effect in 1978) works could be easily given into the public domain by releasing them without an explicit copyright notice and no
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and its derivatives. Permissive-licensed software, which is a kind of free and open-source software, shares most characteristics of earlier public-domain software but stands on the legal basis of copyright law.
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games more than a couple of decades old aren't entering the public domain. Twenty years was a fairly arbitrary number, one that seems to make sense in the context of games' lives, but it could be twenty-five,
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As someone who desperately pines for the PD model that drove creativity before the copyright industry malevolently took over the planet, it saddens my heart that a game two decades old isn't released into the
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1 MIT 44.69%, 2 Other 15.68%, 3 GPLv2 12.96%, 4 Apache 11.19%, 5 GPLv3 8.88%, 6 BSD 3-clause 4.53%, 7 Unlicense 1.87%, 8 BSD 2-clause 1.70%, 9 LGPLv3 1.30%, 10 AGPLv3 1.05% (30 mill * 2% * 17% = 102k)
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by the designers, hereby denoted as 'the implementer'. To the extent possible under law, the implementer has waived all copyright and related or neighboring rights to the source code in this file.
491:"), there are licenses that grant public-domain-like rights. There is no universally agreed-upon license, but there are multiple licenses that aim to release source code into the public domain. 568:. Explicit PD waiver statements or license files were at that time unusual. Publicly available software without a copyright notice was assumed to be, and shared as, public-domain software. 419: 73: 2031:"The Keccak sponge function, designed by Guido Bertoni, Joan Daemen, Michaël Peeters and Gilles Van Assche. For more information, feedback or questions, please refer to our website: 333:
may be in the public domain even if its source code is not made available (making the program not feasibly modifiable), while free software always has the source code available.
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users remain angry about IBM's decision. Announced in February 1983, IBM's object-code-only policy has been applied to a growing list of Big Blue system software products
1894:"Serpent is now completely in the public domain, and we impose no restrictions on its use. This was announced on the 21st August at the First AES Candidate Conference." 1594: 541:
but is not hampered by the complexities of attribution (restriction of permissive licensed software) or license compatibility (issue with copyleft licensed software).
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Validity of the Creative Commons Zero 1.0 Universal Public Domain Dedication and its usability for bibliographic metadata from the perspective of German Copyright Law
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offers a public domain waiver text with a fallback public-domain-like license inspired by permissive licenses but without attribution clause. In 2015,
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There's no doubt that open-source software and that in the public domain are similar. But even experts differ about just how closely linked they are.
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is problematic. This is achieved by a public domain waiver statement and a fallback all-permissive license, in case the waiver is not possible. The
550: 2168: 1536: 687: 1361: 1639: 2006: 941: 2071:"you're paying for an account on the server that I'm running. , and it's actually in the public domain — the source code's all available." 960: 427:. After 1988, all works were by default copyright protected and needed to be actively given into the public domain by a waiver statement. 686:
These examples of modern PD software (after the Berne Convention Implementation Act of 1988) are either under proper public domain (e.g.
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reported that of the approximately 5.1 million licensed projects it hosted, almost 2% used the Unlicense. Another popular option is the
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was enough to dedicate it to the public domain. With the new act, software was by default copyright-protected and needed an explicit
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Public domain software in the early computer age was, for instance, shared as type-in programs in computer magazines and books like
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Around 2004, there was debate on whether public-domain software could be considered part of the FOSS ecosystem, as argued by lawyer
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and the decline of the public-domain software ecosystem. In an effort to preserve this ecosystem he created a software license, the
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previously seen as PD. Only slowly did PD software authors start to include explicit relinquishment or license statement texts.
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was needed and therefore distributed to run the software. PD software was also shared and distributed as printed source code (
2128: 2051: 981: 210:, software was not copyrightable and therefore always in the public domain. This legislation, plus court decisions such as 1461: 531: 373:" (2010), and there was a noticeable rise in the popularity of permissive software licenses. Also, the growing problem of 2161: 1010: 694:
listed 334 hosted PD projects in 2016, and GitHub 102,000 under the Unlicense alone in 2015. In 2016, an analysis of the
208:"computer programs, to the extent that they embody an author's original creation, are proper subject matter of copyright" 1011:
Apple Computer, Inc. v. Franklin Computer Corporation Puts the Byte Back into Copyright Protection for Computer Programs
1471: 1793: 305:, who for long worked in an academic environment of "public-domain"-like software sharing, noticed the emergence of 1064: 587: 487:
While real public domain makes software licenses unnecessary, as no owner/author is required to grant permission ("
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license tries to enforce the free shareability of software also for the future by not allowing license changes.
247:), the legal basis for public-domain software changed drastically. Before the act, releasing software without a 2154: 1435: 1763: 2203: 853: 538: 171: 142: 85: 2109: 381:
of software raised awareness of the relevance of again passing software into the public domain for better
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As a response of the academic software ecosystem to the change in the copyright system in the late 1980s,
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Before 1974, when the US Commission on New Technological Uses of Copyrighted Works (CONTU) decided that
2519: 2399: 1620: 1166: 313:, which encodes the public-domain rights and enforces them irrevocably on software. Paradoxically, his 1547: 1508: 1219: 2514: 2240: 1427: 1385: 393: 386: 1727: 1432:"(License-review) (License-discuss) CC0 incompliant with OSD on patents, (was: MXM compared to CC0)" 1107: 1036:
Kristina B. Sullivan (1986-01-14). "Hackers Create Public-Domain Software for the Sheer Joy of It".
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in Golden Gate University Law Review Volume 14, Issue 2, Article 3 by Jan L. Nussbaum (January 1984)
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Video games are among the earliest examples of shared PD software, which are still notable today:
220:, clarified that the Copyright Act gave computer programs the copyright status of literary works. 2544: 1866: 1636: 1543: 1504: 786: 645: 262: 58: 2026: 2363: 1830: 424: 200: 1981:"Glitch is Dead, Long Live Glitch! - Art & Code from the Game Released into Public Domain" 2383: 2225: 2177: 1778: 1267:. Kingston upon Hull: Information Law and Technology Unit, University of Hull. Archived from 1094: 848: 724: 621: 613: 503: 499: 350: 322: 244: 225: 1816: 2474: 2358: 2348: 2230: 2213: 1679: 1333: 1301: 702: 382: 378: 342: 306: 195: 2053:. PC Gamer. Future plc. Archived from the original on 2023-01-10. Retrieved 30 April 2024. 1562:
The optimal term of copyright has been a matter for extensive debate over the last decade.
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in the essay "Why the public domain isn't a license", a position that faced opposition by
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Copyrighted works, like software, are meant to pass into the public domain after the
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maintains a list of several algorithms and their source code in the public domain.
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IBM's OCO policy protects its own assets but may threaten customers investment
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Skipping Steam: Why Jason Rohrer independently distributes One Hour, One Life
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The Surprising History of Copyright and The Promise of a Post-Copyright World
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April 1987: Ballerburg - Zwei Spieler, zwei Burgen und ein Berg dazwischen...
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Handbook on the Economics of Copyright: A Guide for Students and Teachers
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SERPENT - A Candidate Block Cipher for the Advanced Encryption Standard
1683: 1238: 1223: 1207: 1203: 766: 730: 669: 522:, published around 2010, has a focus on an anti-copyright message. The 502:. In 2009 the Creative Commons released the CC0, which was created for 444: 270: 106: 93: 1854: 1089: 2489: 2436: 2332: 2320: 2066: 1409: 896: 892:"Free software - Free software is a junkyard of software spare parts" 880:
by Fadi P. Deek, James A. M. McHugh "Public domain", page 227 (2008).
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model, asking the users for a financial donation to be sent by mail.
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networks. Public-domain software was commercialized sometimes by a
2298: 2288: 2283: 2193: 1389: 982:"IBM policy draws fire – Users say source code rules hamper change" 637: 353:" public-domain software model visible again, also criticizing the 314: 183: 177: 153:. As software was often written in an interpreted language such as 146: 134: 38: 269:
are still often released into the public domain; examples include
127: 2419: 2404: 2325: 1751: 816: 593: 2007:"Afterlife of an MMO: Glitch's offbeat art enters public domain" 698:'s packages revealed PD was the seventh most popular "license". 2256: 1167:
Source code snippets and frameworks placed in the public domain
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in the public domain. Another distinct difference is that an
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As result, such licensed public-domain software has all the
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by anyone; this is unlike the common case of software under
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Younger developers reject licensing, risk chance for reform
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Pushing back against licensing and the permission culture
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of the digital heritage, unrestricted by copyright and
2110:"Cod5.org: public domain software source code archive" 1298:"GOG's Time Machine Sale Lets You CONTROL TIME ITSELF" 1253:
on opensource.com by Richard Fontana (on 13 Aug 2013).
1330:"Editorial: Why Games Should Enter The Public Domain" 1035: 961:
Firm sidestep IBM policy by banning software changes
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Notable general PD software from that time include:
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was released as a public-domain-like license/waiver/
559: 413: 2037:https://creativecommons.org/publicdomain/zero/1.0/ 1673: 1671: 923:"David H. Ahl biography from Who's Who in America" 2567: 975: 973: 551:Category:Public-domain software with source code 1668: 1355: 1353: 1251:Post open source software, licensing and GitHub 1136: 1134: 345:networks and sharing in web development, a new 336: 128:Early academic public-domain software ecosystem 1426: 1384: 708:releases his works into the PD, as do several 2162: 1118: 1116: 970: 430: 30:indicates works that are in the public domain 1972: 1350: 1262: 1131: 1040:. Vol. 3, no. 2. pp. 121–122. 883: 321:To refer to free software (which is under a 1954: 1828: 1608:"11/17: Lulan Artisans Textile Competition" 241:Berne Convention Implementation Act of 1988 203:was uncommon until the mid-1970s to 1980s. 2169: 2155: 1323: 1321: 1291: 1289: 1113: 682:Examples of modern PD software (post 1988) 534:, released in 2006 and aimed at software. 468:license logo, a public-domain-like license 409:Passing of software into the public domain 285:Free and open-source software as successor 2176: 2004: 1978: 1680:"Open source license usage on GitHub.com" 1178: 1145:, U.S. Copyright Office Circular 3, 2008. 688:created by a US governmental organization 544: 2033:http://keccak.noekeon.org/Implementation 1948: 1410:Placing documents into the public domain 1263:Charlesworth, Andrew (5 November 2002). 1181:"Is public domain software open-source?" 1179:Shankland, Stephen (February 28, 2008). 1016: 471: 460: 123:History of free and open-source software 18: 2092:Categories of free and nonfree software 1998: 1831:"Software Licenses in Fedora Ecosystem" 1646:on ostatic.com by Joe Brockmeier (2010) 1531: 1492: 1390:"Why the public domain isn't a license" 1318: 1286: 979: 451:Public-domain-like licenses and waivers 193:, etc.) and books, like the bestseller 2568: 1720: 1677: 1637:The unlicense a license for no license 1359: 1327: 1295: 1155:The birth of the web Licensing the web 1022:Lemley, Menell, Merges and Samuelson. 942:Object code only: is IBM playing fair? 255:statement or license from the author. 88:) cannot be disclaimed: for instance, 2150: 1960:"LZMA SDK (Software Development Kit)" 1623:by Till Kreutzer, attorney-at-law in 1453: 1460:Watt, Richard (September 26, 2014). 1459: 889: 341:With the 2000s and the emergence of 2027:KeccakReferenceAndOptimized-3.2.zip 1614: 349:generation of developers made the " 13: 1819:on sourceforge.net (February 2016) 878:Open Source: Technology and Policy 145:, and was created in academia, by 14: 2587: 2080: 109:tradition's "copyright" concept. 1434:. opensource.org. Archived from 1090:Article about Jim "Button" Knopf 560:Classical PD software (pre-1988) 483:, and public-domain-like license 457:Public domain equivalent license 414:Release without copyright notice 2056: 2050:Chalk, Andy (10 January 2023). 2044: 2020: 2005:Blackwell, Laura (2013-11-18). 1923: 1911: 1899: 1884: 1872: 1867:PUBLIC DOMAIN CERN WWW SOFTWARE 1860: 1848: 1822: 1810: 1798: 1794:Compute-Gazette-Issue-11-01.pdf 1787: 1772: 1757: 1745: 1699: 1649: 1630: 1600: 1588: 1567: 1525: 1486: 1420: 1403: 1378: 1256: 1244: 1229: 1213: 1197: 1172: 1160: 1148: 1101: 1083: 1057: 1044: 920: 712:, such as Daniel J. Bernstein, 555:Category:Public-domain software 506:with various law domains (e.g. 293:texts were developed, like the 1577:. Creative Commons. 2015-12-16 1360:Rouner, Jef (April 28, 2015). 1029: 1004: 954: 935: 914: 871: 1: 864: 854:Free and open-source software 143:free and open-source software 84:, some rights (in particular 16:Software in the public domain 1829:Anwesha Das (22 June 2016). 1108:the-history-of-shareware-psl 980:Gallant, John (1985-03-18). 337:Post-copyright public domain 69:grant limited usage rights. 41:that has been placed in the 7: 2452:Software release life cycle 2131:. Unlicense. Archived from 1920:on docutils.sourceforge.net 1466:. Edward Elgar Publishing. 1328:Walker, John (2014-02-03). 1296:Walker, John (2014-01-29). 832: 516:dedicating to public domain 10: 2592: 2520:Software protection dongle 2400:Unwanted software bundling 2129:"Unlicensed Free Software" 1678:Balter, Ben (2015-03-09). 479:license logo, a copyright 454: 431:Leaving the copyright term 116: 112: 2515:Digital rights management 2505: 2450: 2392: 2341: 2249: 2184: 1024:Software and Internet Law 439:, losing their copyright 387:digital rights management 259:Reference implementations 2393:Deceptive and/or illicit 2096:Free Software Foundation 2088:"Public domain software" 1979:tinyspeck (2013-11-18). 1931:"youtube-dl GitHub page" 1918:copyrights-and-licensing 1766:on allaboutcircuits.com 890:Shea, Tom (1983-06-23). 844:Public copyright license 2545:Software license server 1544:University of Cambridge 1505:University of Cambridge 787:Diamond Trust of London 646:Colossal Cave Adventure 532:Zero Clause BSD license 2576:Public-domain software 2221:Freely redistributable 2112:. Cod5. Archived from 1752:The Genealogy of Eliza 1597:on anonscm.debian.org. 1065:"Bob Wallace Timeline" 545:Public-domain software 484: 469: 425:copyright registration 201:closed-source software 35:Public-domain software 31: 2384:Software as a service 2178:Software distribution 1222:on opensource.com by 849:License-free software 500:anti-copyright notice 475: 464: 323:free software license 265:meant or applied for 261:of algorithms, often 245:Copyright Act of 1976 22: 2475:Software maintenance 2349:Digital distribution 2204:Free and open-source 2073:(on August 30, 2018) 2029:in mainReference.c: 1728:"Alan Turing at 100" 1334:Rock, Paper, Shotgun 1302:Rock, Paper, Shotgun 1110:on asp-software.org. 703:video game developer 566:BASIC Computer Games 379:digital obsolescence 357:license ecosystem (" 343:peer-to-peer sharing 307:proprietary software 277:cipher in 1999. The 196:BASIC Computer Games 2480:Software maintainer 2262:Commercial software 2250:Compensation models 1983:. glitchthegame.com 1881:on rsb.info.nih.gov 1805:Transactor_v8i3.pdf 1734:. 13 September 2012 1595:Version 1.0 license 1414:Daniel J. Bernstein 1241:(January 28, 2013). 803:The Castle Doctrine 398:Daniel J. Bernstein 80:statement. In some 63:exclusive copyright 2540:Software copyright 2530:Product activation 2485:Software publisher 2199:Floating licensing 1661:2018-07-08 at the 1642:2017-01-22 at the 1274:on 6 February 2011 1157:on cern.ch (2014). 1095:Dr. Dobb's Journal 701:The award-winning 512:continental Europe 489:Permission culture 485: 470: 369:" (2009) and the " 347:copyright-critical 331:executable program 291:permissive license 172:Creative Computing 167:computer magazines 119:Software copyright 32: 28:Public Domain Mark 2563: 2562: 2555:Torrent poisoning 2470:Long-term support 2294:Pay what you want 1665:on unlicense.org. 1226:(on 12 Feb 2013). 1169:on openwall.info. 825:One Hour One Life 718:Douglas Crockford 375:orphaned software 243:(and the earlier 213:Apple v. Franklin 2583: 2369:Product bundling 2342:Delivery methods 2241:Source-available 2171: 2164: 2157: 2148: 2147: 2143: 2141: 2140: 2124: 2122: 2121: 2105: 2103: 2102: 2074: 2069:by Richard Moss 2060: 2054: 2048: 2042: 2024: 2018: 2017: 2015: 2014: 2002: 1996: 1995: 1989: 1988: 1976: 1970: 1969: 1967: 1966: 1952: 1946: 1945: 1943: 1941: 1927: 1921: 1915: 1909: 1903: 1897: 1888: 1882: 1876: 1870: 1864: 1858: 1855:douglascrockford 1852: 1846: 1845: 1839: 1838: 1826: 1820: 1814: 1808: 1802: 1796: 1791: 1785: 1776: 1770: 1764:history-of-spice 1761: 1755: 1749: 1743: 1742: 1740: 1739: 1724: 1718: 1717: 1715: 1713: 1703: 1697: 1696: 1691: 1690: 1675: 1666: 1653: 1647: 1634: 1628: 1618: 1612: 1611: 1604: 1598: 1592: 1586: 1585: 1583: 1582: 1571: 1565: 1564: 1559: 1558: 1552: 1546:. Archived from 1541: 1529: 1523: 1522: 1520: 1519: 1513: 1507:. Archived from 1502: 1490: 1484: 1483: 1481: 1480: 1457: 1451: 1450: 1444: 1443: 1424: 1418: 1407: 1401: 1400: 1398: 1397: 1382: 1376: 1375: 1373: 1372: 1357: 1348: 1347: 1341: 1340: 1325: 1316: 1315: 1309: 1308: 1293: 1284: 1283: 1281: 1279: 1273: 1272:(Microsoft Word) 1260: 1254: 1248: 1242: 1233: 1227: 1217: 1211: 1201: 1195: 1194: 1189: 1188: 1176: 1170: 1164: 1158: 1152: 1146: 1142:Copyright Notice 1138: 1129: 1120: 1111: 1105: 1099: 1087: 1081: 1080: 1078: 1076: 1061: 1055: 1048: 1042: 1041: 1033: 1027: 1020: 1014: 1008: 1002: 1001: 995: 994: 977: 968: 958: 952: 939: 933: 932: 930: 929: 918: 912: 911: 905: 904: 887: 881: 875: 755:reStructuredText 743:Serpent (cipher) 420:Berne Convention 363:Creative Commons 359:Post Open Source 303:Richard Stallman 279:Openwall Project 249:copyright notice 163:type-in programs 92:tradition-based 74:Berne Convention 25:Creative Commons 2591: 2590: 2586: 2585: 2584: 2582: 2581: 2580: 2566: 2565: 2564: 2559: 2550:Software patent 2525:License manager 2507:Copy protection 2501: 2446: 2388: 2374:Retail software 2337: 2311:Open-core model 2267:Retail software 2245: 2180: 2175: 2138: 2136: 2127: 2119: 2117: 2108: 2100: 2098: 2086: 2083: 2078: 2077: 2061: 2057: 2049: 2045: 2025: 2021: 2012: 2010: 2003: 1999: 1986: 1984: 1977: 1973: 1964: 1962: 1953: 1949: 1939: 1937: 1929: 1928: 1924: 1916: 1912: 1904: 1900: 1889: 1885: 1877: 1873: 1865: 1861: 1853: 1849: 1836: 1834: 1833:. anweshadas.in 1827: 1823: 1817:334 PD projects 1815: 1811: 1803: 1799: 1792: 1788: 1781:on oilzine.com 1777: 1773: 1762: 1758: 1754:by Jeff Shrager 1750: 1746: 1737: 1735: 1732:Harvard Gazette 1726: 1725: 1721: 1711: 1709: 1705: 1704: 1700: 1688: 1686: 1676: 1669: 1663:Wayback Machine 1654: 1650: 1644:Wayback Machine 1635: 1631: 1625:Berlin, Germany 1619: 1615: 1610:. 18 June 2009. 1606: 1605: 1601: 1593: 1589: 1580: 1578: 1573: 1572: 1568: 1556: 1554: 1550: 1539: 1530: 1526: 1517: 1515: 1511: 1500: 1491: 1487: 1478: 1476: 1474: 1458: 1454: 1441: 1439: 1425: 1421: 1408: 1404: 1395: 1393: 1383: 1379: 1370: 1368: 1358: 1351: 1338: 1336: 1326: 1319: 1306: 1304: 1294: 1287: 1277: 1275: 1271: 1261: 1257: 1249: 1245: 1234: 1230: 1218: 1214: 1202: 1198: 1186: 1184: 1177: 1173: 1165: 1161: 1153: 1149: 1139: 1132: 1121: 1114: 1106: 1102: 1088: 1084: 1074: 1072: 1063: 1062: 1058: 1049: 1045: 1034: 1030: 1021: 1017: 1009: 1005: 992: 990: 978: 971: 967:(18 March 1985) 959: 955: 940: 936: 927: 925: 919: 915: 902: 900: 888: 884: 876: 872: 867: 835: 684: 630:Hunt the Wumpus 562: 547: 459: 453: 433: 416: 411: 339: 287: 267:standardization 130: 125: 115: 102:" differs from 17: 12: 11: 5: 2589: 2579: 2578: 2561: 2560: 2558: 2557: 2552: 2547: 2542: 2537: 2532: 2527: 2522: 2517: 2511: 2509: 2503: 2502: 2500: 2499: 2498: 2497: 2487: 2482: 2477: 2472: 2467: 2462: 2456: 2454: 2448: 2447: 2445: 2444: 2439: 2434: 2433: 2432: 2427: 2422: 2417: 2412: 2402: 2396: 2394: 2390: 2389: 2387: 2386: 2381: 2376: 2371: 2366: 2361: 2356: 2351: 2345: 2343: 2339: 2338: 2336: 2335: 2330: 2329: 2328: 2318: 2313: 2308: 2307: 2306: 2301: 2291: 2286: 2281: 2276: 2271: 2270: 2269: 2259: 2253: 2251: 2247: 2246: 2244: 2243: 2238: 2233: 2228: 2223: 2218: 2217: 2216: 2211: 2201: 2196: 2190: 2188: 2182: 2181: 2174: 2173: 2166: 2159: 2151: 2145: 2144: 2125: 2106: 2082: 2081:External links 2079: 2076: 2075: 2055: 2043: 2019: 1997: 1971: 1947: 1922: 1910: 1898: 1883: 1871: 1859: 1847: 1821: 1809: 1797: 1786: 1771: 1756: 1744: 1719: 1698: 1667: 1648: 1629: 1613: 1599: 1587: 1566: 1535:(2009-06-15). 1533:Pollock, Rufus 1524: 1496:(2007-10-01). 1494:Pollock, Rufus 1485: 1472: 1452: 1430:(2012-03-08). 1428:Lawrence Rosen 1419: 1402: 1392:. rosenlaw.com 1388:(2004-05-25). 1386:Lawrence Rosen 1377: 1349: 1317: 1285: 1255: 1243: 1228: 1212: 1196: 1171: 1159: 1147: 1130: 1112: 1100: 1082: 1071:. Jan 12, 2004 1056: 1043: 1028: 1015: 1003: 969: 953: 951:- 8 Febr. 1988 934: 913: 882: 869: 868: 866: 863: 862: 861: 856: 851: 846: 841: 834: 831: 830: 829: 821: 813: 807: 799: 791: 783: 770: 764: 758: 752: 746: 740: 734: 728: 714:Bruce Schneier 710:cryptographers 696:Fedora Project 683: 680: 675: 674: 666: 658: 650: 642: 634: 626: 618: 610: 598: 597: 591: 585: 579: 561: 558: 546: 543: 455:Main article: 452: 449: 437:copyright term 432: 429: 415: 412: 410: 407: 394:Lawrence Rosen 338: 335: 286: 283: 199:. Earlier on, 129: 126: 114: 111: 15: 9: 6: 4: 3: 2: 2588: 2577: 2574: 2573: 2571: 2556: 2553: 2551: 2548: 2546: 2543: 2541: 2538: 2536: 2533: 2531: 2528: 2526: 2523: 2521: 2518: 2516: 2513: 2512: 2510: 2508: 2504: 2496: 2493: 2492: 2491: 2488: 2486: 2483: 2481: 2478: 2476: 2473: 2471: 2468: 2466: 2463: 2461: 2458: 2457: 2455: 2453: 2449: 2443: 2440: 2438: 2435: 2431: 2428: 2426: 2423: 2421: 2418: 2416: 2413: 2411: 2408: 2407: 2406: 2403: 2401: 2398: 2397: 2395: 2391: 2385: 2382: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2364:Pre-installed 2362: 2360: 2357: 2355: 2352: 2350: 2347: 2346: 2344: 2340: 2334: 2331: 2327: 2324: 2323: 2322: 2319: 2317: 2314: 2312: 2309: 2305: 2302: 2300: 2297: 2296: 2295: 2292: 2290: 2287: 2285: 2282: 2280: 2277: 2275: 2272: 2268: 2265: 2264: 2263: 2260: 2258: 2255: 2254: 2252: 2248: 2242: 2239: 2237: 2236:Public domain 2234: 2232: 2229: 2227: 2224: 2222: 2219: 2215: 2212: 2210: 2207: 2206: 2205: 2202: 2200: 2197: 2195: 2192: 2191: 2189: 2187: 2183: 2179: 2172: 2167: 2165: 2160: 2158: 2153: 2152: 2149: 2135:on 2018-07-08 2134: 2130: 2126: 2116:on 2015-03-19 2115: 2111: 2107: 2097: 2093: 2089: 2085: 2084: 2072: 2068: 2064: 2059: 2052: 2047: 2040: 2038: 2034: 2028: 2023: 2009:. pcworld.com 2008: 2001: 1994: 1982: 1975: 1961: 1957: 1951: 1936: 1932: 1926: 1919: 1914: 1908:on sqlite.org 1907: 1902: 1895: 1892: 1887: 1880: 1875: 1868: 1863: 1856: 1851: 1844: 1832: 1825: 1818: 1813: 1806: 1801: 1795: 1790: 1784: 1780: 1779:Classic Games 1775: 1769: 1765: 1760: 1753: 1748: 1733: 1729: 1723: 1708: 1702: 1695: 1685: 1681: 1674: 1672: 1664: 1660: 1657: 1656:The Unlicense 1652: 1645: 1641: 1638: 1633: 1626: 1622: 1617: 1609: 1603: 1596: 1591: 1576: 1570: 1563: 1553:on 2013-01-12 1549: 1545: 1538: 1534: 1528: 1514:on 2013-02-21 1510: 1506: 1499: 1495: 1489: 1475: 1473:9781849808538 1469: 1465: 1464: 1456: 1449: 1438:on 2016-03-12 1437: 1433: 1429: 1423: 1415: 1411: 1406: 1391: 1387: 1381: 1367: 1366:Houston Press 1363: 1356: 1354: 1346: 1335: 1331: 1324: 1322: 1314: 1303: 1299: 1292: 1290: 1270: 1266: 1259: 1252: 1247: 1240: 1237: 1232: 1225: 1221: 1216: 1209: 1205: 1200: 1193: 1182: 1175: 1168: 1163: 1156: 1151: 1144: 1143: 1137: 1135: 1128: 1124: 1119: 1117: 1109: 1104: 1097: 1096: 1091: 1086: 1070: 1066: 1060: 1052: 1047: 1039: 1032: 1025: 1019: 1012: 1007: 1000: 989: 988: 987:Computerworld 983: 976: 974: 966: 965:Computerworld 962: 957: 950: 949:Computerworld 946: 943: 938: 924: 917: 910: 899: 898: 893: 886: 879: 874: 870: 860: 857: 855: 852: 850: 847: 845: 842: 840: 839:Public domain 837: 836: 827: 826: 822: 819: 818: 814: 811: 808: 805: 804: 800: 797: 796: 792: 789: 788: 784: 781: 778: 774: 771: 768: 765: 762: 759: 756: 753: 750: 747: 744: 741: 738: 735: 732: 729: 726: 723: 722: 721: 719: 715: 711: 707: 704: 699: 697: 693: 689: 679: 672: 671: 667: 664: 663: 659: 656: 655: 651: 648: 647: 643: 640: 639: 635: 632: 631: 627: 624: 623: 619: 616: 615: 611: 608: 607: 603: 602: 601: 595: 592: 589: 586: 583: 580: 577: 574: 573: 572: 569: 567: 557: 556: 552: 542: 540: 539:four freedoms 535: 533: 529: 525: 521: 517: 513: 509: 505: 504:compatibility 501: 497: 492: 490: 482: 478: 474: 467: 463: 458: 448: 446: 442: 438: 428: 426: 421: 406: 404: 403:Ninth Circuit 399: 395: 390: 388: 384: 380: 376: 372: 368: 364: 360: 356: 352: 348: 344: 334: 332: 328: 324: 319: 316: 312: 308: 304: 301:In the 1980s 299: 296: 292: 282: 280: 276: 272: 268: 264: 263:cryptographic 260: 256: 254: 250: 246: 242: 237: 233: 231: 227: 221: 219: 215: 214: 209: 204: 202: 198: 197: 192: 191: 186: 185: 180: 179: 174: 173: 168: 164: 160: 156: 152: 148: 144: 140: 136: 124: 120: 110: 108: 105: 101: 100: 95: 91: 87: 83: 82:jurisdictions 79: 75: 70: 68: 64: 60: 56: 52: 48: 44: 43:public domain 40: 36: 29: 26: 21: 2425:Trojan horse 2354:File sharing 2316:Postcardware 2304:Donationware 2279:Crowdfunding 2235: 2226:License-free 2137:. 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Retrieved 921:Ahl, David. 916: 907: 901:. Retrieved 895: 885: 873: 823: 815: 801: 793: 785: 731:CERN's httpd 706:Jason Rohrer 700: 685: 676: 668: 660: 652: 644: 636: 628: 620: 612: 604: 599: 570: 565: 563: 548: 536: 523: 519: 515: 494:In 2000 the 493: 486: 434: 417: 391: 383:preservation 351:license-free 340: 326: 320: 300: 288: 273:in 1993 and 257: 238: 234: 230:donationware 222: 216:in 1983 for 211: 207: 205: 194: 188: 182: 176: 170: 131: 99:Urheberrecht 97: 86:moral rights 71: 34: 33: 2535:Product key 2465:End-of-life 2460:Abandonware 2410:Infostealer 2359:On-premises 2274:Crippleware 2231:Proprietary 2214:Open source 1956:Igor Pavlov 1712:25 February 1575:"Downloads" 1127:cornell.edu 859:Abandonware 692:SourceForge 654:Android Nim 445:video games 418:Before the 295:BSD license 218:object code 159:source code 104:Anglo-Saxon 59:attribution 2442:Shovelware 2415:Ransomware 2379:Sneakernet 2139:2015-03-12 2120:2015-03-12 2101:2013-07-31 2013:2013-12-11 1987:2013-12-11 1965:2013-06-16 1879:disclaimer 1837:2016-06-27 1738:2016-02-22 1689:2015-11-21 1684:github.com 1581:2015-12-24 1557:2015-01-11 1518:2015-01-11 1479:2015-01-11 1442:2016-02-22 1396:2016-02-22 1371:2016-02-03 1339:2016-01-30 1307:2016-01-30 1239:Luis Villa 1224:Luis Villa 1208:Karl Fogel 1187:2016-02-03 1183:. cnet.com 993:2015-12-27 928:2009-11-23 903:2016-02-10 865:References 767:youtube-dl 670:Ballerburg 405:decision. 271:CERN httpd 224:shared on 117:See also: 107:common law 94:German law 72:Under the 2490:Vaporware 2437:Scareware 2333:Trialware 2321:Shareware 2067:Gamasutra 1940:2 October 1906:copyright 1857:on GitHub 897:InfoWorld 622:Star Trek 606:Spacewar! 549:See also 524:Unlicense 520:Unlicense 508:civil law 441:privilege 371:Unlicense 239:With the 147:hobbyists 139:shareware 51:trademark 47:copyright 2570:Category 2299:Careware 2289:Freeware 2284:Freemium 2194:Beerware 2186:Licenses 1993:purpose. 1958:(2008). 1659:Archived 1640:Archived 1278:23 March 1075:March 7, 1054:German). 1026:, p. 34. 833:See also 638:Maze War 614:Hamurabi 514:) where 315:copyleft 184:Compute! 178:SoftSide 135:freeware 67:licenses 65:, where 39:software 2420:Spyware 2405:Malware 2326:Nagware 1345:thirty. 1210:(2006). 1092:, from 1038:PC Week 817:Duelyst 594:FFTPACK 275:Serpent 151:hackers 113:History 2257:Adware 1935:GitHub 1896:(1999) 1869:(1993) 1470:  1313:world. 1069:Erowid 828:(2018) 820:(2016) 812:(2015) 806:(2014) 798:(2013) 795:Glitch 790:(2012) 782:(2008) 769:(2006) 763:(2003) 757:(2002) 751:(2000) 749:SQLite 745:(1999) 739:(1997) 737:ImageJ 733:(1993) 727:(1990) 673:(1987) 665:(1980) 657:(1978) 649:(1976) 641:(1974) 633:(1972) 625:(1971) 617:(1969) 609:(1962) 596:(1985) 590:(1979) 584:(1973) 578:(1966) 528:GitHub 481:waiver 253:waiver 169:(like 157:, the 149:, and 141:, and 78:waiver 55:patent 1551:(PDF) 1540:(PDF) 1512:(PDF) 1501:(PDF) 909:life. 810:SHA-3 773:7-Zip 725:BLAST 662:Rogue 582:SPICE 576:ELIZA 496:WTFPL 466:WTFPL 165:) in 155:BASIC 90:civil 53:, or 2495:list 2430:Worm 2209:Free 1942:2016 1714:2020 1468:ISBN 1280:2011 1077:2013 777:LZMA 716:and 588:BLAS 377:and 355:FOSS 190:Byte 121:and 96:'s " 23:The 2065:on 1412:by 1206:by 1125:on 963:on 947:on 780:SDK 775:'s 761:I2P 510:of 477:CC0 367:CC0 327:not 311:GPL 226:BBS 37:is 2572:: 2094:. 2090:. 1990:. 1933:. 1840:. 1730:. 1692:. 1682:. 1670:^ 1560:. 1542:. 1503:. 1445:. 1364:. 1352:^ 1342:. 1332:. 1320:^ 1310:. 1300:. 1288:^ 1190:. 1133:^ 1115:^ 1067:. 996:. 984:. 972:^ 906:. 894:. 553:, 447:. 389:. 187:, 181:, 175:, 137:, 49:, 2170:e 2163:t 2156:v 2142:. 2123:. 2104:. 2041:. 2039:" 2016:. 1968:. 1944:. 1741:. 1716:. 1627:. 1584:. 1521:. 1482:. 1399:. 1374:. 1282:. 1098:. 1079:. 931:. 365:"

Index


Creative Commons
Public Domain Mark
software
public domain
copyright
trademark
patent
attribution
exclusive copyright
licenses
Berne Convention
waiver
jurisdictions
moral rights
civil
German law
Urheberrecht
Anglo-Saxon
common law
Software copyright
History of free and open-source software
freeware
shareware
free and open-source software
hobbyists
hackers
BASIC
source code
type-in programs

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