Compared with traditional libraries, virtual reality libraries have many advantages. First of all, the number of books can be larger, not subject to cost constraints. As long as there is an electronic version of the same book, it can be lent to many people at the same time without book maintenance. Secondly, the electronic library is particularly convenient to find books, and it has many advantages over the traditional library in finding books, and there is no need to borrow and return books.
Traditional libraries mainly collect, process and preserve paper-based literature information such as books, periodicals and materials, which is limited to printed text information. The information resources of digital library are standardized information after digital processing, including binary files such as text, program, sound, image and multimedia information.