Which is is the modern method visible index card ?
A) wheel index card
B) visible index card
C) automatics index card
D)strip index card
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Answer:
C is Answer...
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Wheel Indexing - It is a sort of modern method of visible indexing. Here cards are arranged about the circumference of a wheel which may be portable or set in a cabinet or desk. A single wheel can hold as many as 5,000 cards and as many as six such wheels can be set up within the easy reach ofa clerk.
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