1. Speech information resources are information resources expressed by human beings in spoken language but not recorded. They are directly consumed by "information" on specific occasions and can be passed on from generation to generation to more people. The activities used, such as talking, chatting, teaching, lectures, discussions, singing and other activities, all center on the exchange and utilization of oral information resources.
2. Documentary information resources are information resources recorded on specific carriers in the form of language, text, data, images, audio, video, etc. Their most important feature is that they have material carriers that are not attached to people. , as long as these carriers are not damaged or disappeared, documentary information resources can be used by humans indefinitely across time and space.
3. Body language information resources are information resources expressed by human beings in gestures, expressions, postures, etc. They are usually attached to a specific cultural background. For example, dance is a typical body language information resource.
4. Physical information resources are information resources expressed in physical form through human creative labor. Such information resources have many material components and are sometimes difficult to distinguish from material resources, and their transmissibility Generally poor; common physical information resources include product samples, models, inscriptions, sculptures, etc.
5. Based on the recording method and carrier material, documentary information resources can be divided into five categories: written type, printed type, miniature type, machine-readable type and audio-visual type. Written document information resources generally use paper as a carrier, and are recorded in manual copying, including manuscripts, letters, diaries, original files, etc. Printed literature information resources are also mainly paper-based, and the recording method is mainly printing technology, including mimeograph, lead printing, offset printing, woodcut printing, photocopying, laser printing, etc. Microfilm information resources use photosensitive materials as carriers, and the recording method is mainly optical recording technology. The main types include microfilm, microfilm, microfilm cards, etc. Machine-readable document information resources use magnetic materials as carriers, and the recording method is magnetic recording technology. The main types include magnetic tapes, floppy disks, optical disks, etc.
6. Audiovisual documentary information resources use photosensitive materials and magnetic materials as carriers, and the recording methods are optical recording technology and magnetic recording technology. The main types include records, audio and video tapes, film reels, films, and slides. wait.
7. Printed literature information resources can also be divided into books, journals, conference materials, research reports, patent specifications, government publications, dissertations, product specifications, archives, standards, News newspapers, statistical reports, maps, etc.