Electronic books (e-book, ebook, eBooks, digital books, 1966) is a book-length publication in digital form, made up of text, images, or both, and produced, distributed through, and can be read on a computer or other electronic devices. Sometimes the equivalent of a conventional printed book, e-books can also be born digital.
One e-book early prototype implementation for desktop computer, Dynabook, notebook, which was proposed in the 1970s at PARC: General portable personal computer capable of displaying a book to read. The decision to buy the title was handed over to the customer, even though libraries can purchase conditions such as maximum prices and buy a hat so that special funds spent by the library budget.
Early e-books are generally written for specific areas and a limited audience, which is meant to be read only by a small and devoted interest groups. The scope of the subject of e-books including technical manual hardware, manufacturing engineering and other subjects. In the 1990s, the general availability of the Internet makes electronic file transfer that much easier, including e-books.