No. Copyright protects the expression or form that the ideas take. The idea of an article about the Olympic Games, for example, is not protected by copyright. A person who writes about the Olympic Games can take action against others reproducing his or her written work, but cannot prevent others from writing their own work on the Olympic Games or using ideas or information from his or her work.
Plagiarism generally means taking and using another person’s ideas, writing or inventions as your own. Plagiarism is not an area of law and not all acts of plagiarism are necessarily infringements of copyright. For instance, a writer or academic may breach the ethical standards expected of him or her by presenting someone else’s ideas as his or her own, but not infringe copyright because he or she has expressed the other person’s ideas in his own way.
If you have created a computer manual and you are including screen dumps from someone else’s program, you are likely to need their permission. Some software manufacturers grant licences for this type of use; for example, Microsoft has various blanket licences on its website which allow its software to be used in certain ways for certain purposes. Your first steps should be to check the terms on which the software is licensed, and the website of the relevant company.
The word “royalty” usually describes a percentage of income (for example, from the selling price of a book) which is payable to a copyright owner under a contract with someone who is using the copyright owner’s work. Publishing contracts, for example, usually provide for royalties to be paid by a book publisher to the writer.
This depends on the rights you granted to the magazine. If you merely submitted the work to the magazine, either with an express invitation to publish or without any express statement but in circumstances in which it could be implied that the magazine had a right to publish, the magazine would have a non-exclusive licence to publish your work once. In this situation you could offer the work to other publications. Of course, you should indicate to subsequent publishers that the work has been published elsewhere.
If, on the other hand, you signed a document granting the first publisher an exclusive licence to publish your work, you may not be able to grant another publisher a similar right. This will largely depend on the terms of the agreement you reached.
The ISBN is a 10-digit number that uniquely identifies books and book-like products published internationally. Each number identifies a unique edition of a publication, from one specific publisher; its purpose is to allow more efficient marketing of products by booksellers, libraries, universities, wholesalers and distributors.
ISBNs are given to printed books and pamphlets, book readings on cassettes, microform publications and microcomputer software. ISBNs are not given to ephemeral material (such as diaries, calendars, theatre programs), sheet music, art prints and art folders, and serial publications such as newspapers, magazines and annual reports. Serial publications receive an ISSN – International Standard Serial Number. http://www.thorpe.com.au/isbn/