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Copyright is the legal ownership of the right to reproduce computer programs, literary works, musical works, photographs, games, movies, etc. Copyright is generally considered to belong to the author unless transferred to another party.
Most computer programs are protected not only by copyright but also by software licenses. Copyright only protects the expression of an idea, not the idea itself. Algorithms, mathematical methods, techniques or machine designs are not protected by copyright.
Modern concepts:
The original copyright system lasted for more than 700 years in China and more than 200 years in Europe. In the second half of the 17th century, under the impact of new ideas such as "all men are born free and equal" and "private property is inviolable" proposed by British philosophers J. Milton, J. Locke and others.
The feudal monopoly system centered on the royal family began to shake. After the bourgeois revolution, the parliamentary system representing the interests of the new aristocracy and bourgeoisie replaced the absolute monarchy with divine right of kings, and the monopoly granted by the royal family to printers was also abolished.
In the UK, after the abolition of the printing privilege granted by the royal family to booksellers and companies, booksellers and printers invoked the theory of literary property rights to demand certain forms of legal protection for the books they printed. On January 11, 1709, a bill was introduced in the House of Commons, requiring that the right to print and distribute books should be granted within a certain period to the author or the purchaser of the original manuscript.
This proposal became the Statute of Queen Anne, which came into effect on April 10, 1710. The law stipulates that for any book that has been published, the author has the right to reprint the book within 21 years from the effective date of the law. For unpublished books, the author enjoys 28 years of publishing rights.
Reference for the above content: Baidu Encyclopedia-Copyright