Page 13 - DLIS006_INFORMATION SOURCES AND SERVICES

Information Sources and Services
Notes
8 LOVELY PROFESSIONAL UNIVERSITY
It may be audio-visual and varieties of microforms. Even maps, atlases and globes, etc. are
sometimes included. However, no suitable definition is available to encompass precisely the
term or it is difficult to provide a suitable and acceptable definition, therefore we would list the
non-print media that normally include:
1. Photographs, film slides, transparencies;
2. Realia, mock-ups, models and specimens;
3. Phono-recordings, including discs;
4. Audio tapes, cassettes and cartridges;
5. Motion pictures, Video Tapes, Kinescopes;
6. Portfolio, Kits;
7. Maps, Atlases, Globes;
8. Microforms;
9. Magnetic Media; and
10. Optical Media.
Following are the difference between print and non-print sources of information:
Print Sources Non-Print Sources
• Dictionary (general and special) • Internet website
• Thesaurus • Online database (subscription and
• Encyclopaedia (general and special) Internet)
• Almanac • Video, DVD, Blu-ray, etc.
• Atlas • CD, CD-ROM, MP3, etc.
• Books, Periodicals, Maps and Charts, etc. • TV/Cable program
Self Assessment
State whether the following statements are true or false:
6. Non Print Source is a source of information that was originally published and made
available to the public by being printed on paper.
7. A sheet is a piece of paper of varying sizes on which the written or typed matter is printed.
8. A newspaper is a small sheet of paper folded once and printed to make two or four pages.
9. A book is usually stapled/stitched along one edge and placed within protective covers to
form a volume.
1.3 Categories of Documentary Sources of Information
Different authors classified the documentary sources of information into different categories.
Some popular classifications are listed below:
(a) C. W. Hanson Classification: C. W. Hanson (1971) in the article “Introduction to science
Information work” published in ASLIB (previously Association of Special Libraries
and Information Bureau but now known as Association for Information Management)
divides documentary sources of information into two categories i.e. primary and secondary.