Page 83 - DLIS407_INFORMATION AND LITERATURE SURVEY IN SOCIAL SCIENCES

Information and Literature Survey in Social Sciences

Notes Floppy Disc

Floppy diskette or floppy disc is another low cost storage medium. It is made of plastic, coated with
magnetic surface and allows random access. Information stored in these discs can be retrieved easily.
Current contents are now available on floppy disc.

CD- ROM (Compact Disc Read Only Memory)
CD-ROM is plastic disc storage medium. Unlike other storage mediums. Such as tapes, floppy disc
etc. Hard disc etc., which is based on the principle of magnetism, CD-ROMs are based on the use
of light. But, nothing can be written on it. Scientific periodicals, Books in print, BNB etc. are now
available on CD-ROM.

Self Assessment

Fill in the blanks:
1. A ……………..is a work that was created or written contemporary with the period or subject
being studied.
2. A …………..presents summaries or condensed versions of materials, usually with references
back to the primary and/or secondary sources.
3. An ………….is regarded as an important secondary source of information.
4. A ………..constitutes and effective means of secondary source as it selects, organizes and
presents information, available in primary sources, in a systematic order.
5. A ………..is any work written by hand on paper, parchment, palm-leaf, etc. most of which
remain unpublished.

10.4 Summary

y A Primary sources or document is one in which the information contained is original or first
disseminated formulation of any new observation or experiment.
y Secondary sources contain second-hand information that has already appeared in primary
documents. The information in them, is reviewed, rearranged and presented in a systematic
order according to the requirements of the users.
y Tertiary sources of information act as a guide to the secondary and primary sources of
information.
y There are a number of sources that provide information but are not generally printed or
published in a documentary form, are known as non- documentary sources.

10.5 Keywords

Primary Sources: A Primary sources or document is one in which the information contained is original
or first disseminated formulation of any new observation or experiment.
Secondary Sources: Secondary sources contain second-hand information that has already appeared in
primary documents. The information in them, is reviewed, rearranged and presented in a systematic
order according to the requirements of the users.
Tertiary Sources: Tertiary sources of information act as a guide to the secondary and primary sources
of information.

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