The client–server model is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters, called clients. Often clients and servers communicate over a computer network on separate hardware, but both client and server may reside in the same system. A server host runs one or more server programs, which share their resources with clients. A client usually does not share any of its resources, but it requests content or service from a server. Clients, therefore, initiate communication sessions with servers, which await incoming requests. Examples of computer applications that use the client–server model are email, network printing, and the World Wide Web.
Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the network, forming a peer-to-peer network of nodes.
Criticism of copyright, or anti-copyright sentiment, is a dissenting view of the current state of copyright law or copyright as a concept. Critics often discuss philosophical, economical, or social rationales of such laws and the laws' implementations, the benefits of which they claim do not justify the policy's costs to society. They advocate for changing the current system, though different groups have different ideas of what that change should be. Some call for remission of the policies to a previous state—copyright once covered few categories of things and had shorter term limits—or they may seek to expand concepts like fair use that allow permissionless copying. Others seek the abolition of copyright itself.
A web hosting service is a type of Internet hosting service that hosts websites for clients, i.e. it offers the facilities required for them to create and maintain a site and makes it accessible on the World Wide Web. Companies providing web hosting services are sometimes called web hosts.
An anonymous P2P communication system is a peer-to-peer distributed application in which the nodes, which are used to share resources, or participants are anonymous or pseudonymous. Anonymity of participants is usually achieved by special routing overlay networks that hide the physical location of each node from other participants.
A dark net or darknet is an overlay network within the Internet that can only be accessed with specific software, configurations, or authorization, and often uses a unique customized communication protocol. Two typical darknet types are social networks, and anonymity proxy networks such as Tor via an anonymized series of connections.
Commons-based peer production (CBPP) is a term coined by Harvard Law School professor Yochai Benkler. It describes a model of socio-economic production in which large numbers of people work cooperatively; usually over the Internet. Commons-based projects generally have less rigid hierarchical structures than those under more traditional business models.
Peer production is a way of producing goods and services that relies on self-organizing communities of individuals. In such communities, the labor of many people is coordinated towards a shared outcome.
An information commons is an information system, such as a physical library or online community, that exists to produce, conserve, and preserve information for current and future generations. Wikipedia could be considered to be an information commons to the extent that it produces and preserves information through current versions of articles and histories. Other examples of an information commons include Creative Commons.
Peer-to-peer file sharing is the distribution and sharing of digital media using peer-to-peer (P2P) networking technology. P2P file sharing allows users to access media files such as books, music, movies, and games using a P2P software program that searches for other connected computers on a P2P network to locate the desired content. The nodes (peers) of such networks are end-user computers and distribution servers.
The knowledge divide is the gap between those who can find, create, manage, process, and disseminate information or knowledge, and those who are impaired in this process. According to a 2005 UNESCO World Report, the rise in the 21st century of a global information society has resulted in the emergence of knowledge as a valuable resource, increasingly determining who has access to power and profit. The rapid dissemination of information on a potentially global scale as a result of new information media and the globally uneven ability to assimilate knowledge and information has resulted in potentially expanding gaps in knowledge between individuals and nations. The digital divide is an extension of the knowledge divide, dividing people who have access to the internet and those who do not. The knowledge divide also represents the inequalities of knowledge among different identities, including but not limited to race, economic status, and gender.
The commercialization of copylefted works differs from proprietary works. The economic focus tends to be on the commercialization of other scarcities, and complimentary goods rather than the free works themselves. One way to make money with copylefted works is to sell consultancy and support to the users of the work. Generally, financial profit is expected to be much lower in a business model utilising copyleft works only than in a business using proprietary works. Another way is to use the copylefted work as a commodity tool or component to provide a service or product. Android phones, for example, include the Linux kernel, which is copylefted. Unlike business models which commercialize copylefted works only, businesses which deal with proprietary products can make money by exclusive sales, single and transferable ownership, and litigation rights over the work, although some view these methods as monopolistic and unethical, such as those in the Free Software Movement and the Free Culture Movement.
This is a glossary of jargon related to peer-to-peer file sharing via the BitTorrent protocol.
Participatory culture, an opposing concept to consumer culture, is a culture in which private individuals do not act as consumers only, but also as contributors or producers (prosumers). The term is most often applied to the production or creation of some type of published media.
The Wealth of Networks: How Social Production Transforms Markets and Freedom is a book by Harvard Law School professor Yochai Benkler published by Yale University Press on April 3, 2006. The book has been recognized as one of the most influential works of its time concerning the rise and impact of the Internet on the society, particularly in the sphere of economics. It also helped popularize the term Benkler coined few years earlier, the commons-based peer production (CBPP).
Cyberethics is "a branch of ethics concerned with behavior in an online environment". In another definition, it is the "exploration of the entire range of ethical and moral issues that arise in cyberspace" while cyberspace is understood to be "the electronic worlds made visible by the Internet." For years, various governments have enacted regulations while organizations have defined policies about cyberethics.
File sharing is the practice of distributing or providing access to digital media, such as computer programs, multimedia, documents or electronic books. Common methods of storage, transmission and dispersion include removable media, centralized servers on computer networks, Internet-based hyperlinked documents, and the use of distributed peer-to-peer networking.
Music piracy is the copying and distributing of recordings of a piece of music for which the rights owners did not give consent. In the contemporary legal environment, it is a form of copyright infringement, which may be either a civil wrong or a crime depending on jurisdiction. The late 20th and early 21st centuries saw much controversy over the ethics of redistributing media content, how much production and distribution companies in the media were losing, and the very scope of what ought to be considered piracy – and cases involving the piracy of music were among the most frequently discussed in the debate.
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized software development model that encourages open collaboration. A main principle of open-source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public. The open-source movement in software began as a response to the limitations of proprietary code. The model is used for projects such as in open-source appropriate technology, and open-source drug discovery.
