Throughout history, man has been recording, presenting, and preserving information through various media like palm leaves stores, tablets, leather, clay, etc. The invention of paper and the printing press brought a revolution in this direction. Subsequently, micro documents and audio-video cassettes also arrived on the scene. The 20th century witnessed a revolution in the form of computer for storing and retrieving information. CD-ROM brought a revolution in information storage and retrieval. DVD, with much higher storage capacity, further revolutionized the information delivery mechanism. World Wide Web converted the whole world into an information city. The information going electronic, knowledge storage and retrieval has become dynamic with the help of powerful retrieval engines irrespective of the storage media used, be it CD or Internet. Slowly, the static and paper-based libraries are being replaced by dynamic electronic/digital/virtual mechanisms for producing, organizing, locating, repackaging, and accessing the information. Many libraries have gained experience in developing and building digital resources and their management. Electronic book is a text, analogous to a book that is in digital form to be displayed on a computer screen. E-books are online or in CD-ROMs, which store vast amounts of data in text form, as well as digital images, animation, music, and other sounds to supplement this text.
Evaluation of World Wide Web-based Lessons for a First Year Dental Biochemistry Course
