Chemical Abstracts Service history

To close, we distill in Figure 1.3 the essence of what we have described about the history of computing at pharmaceutical companies over the last four decades. We plot the number of papers published (and abstracted by Chemical Abstracts Service) for each year from 1964 through 2004, the most recent... 

Weisgerber DW. Chemical Abstracts Service Chemical Registry System history, scope, and impacts. J Am Soc Inf Sci 1997 48 349-60. 

A Brief History of Chemical Abstracts Service in A Century of Chemistry , eds. H. Skolnik and K. M. Reese, American Chemical Society, Washington, DC, 1976, pp. 126- 143. 

Like the volume indexes, the collective indexes are composed of various individual indexes. However, on account of scientific developments, the content and organization of the indexes have been considerably changed in the course of the 85-year history of the Chemical Abstracts Service (Table 4). 

The connection between the user and the remote resource was said to be statefull , in that a complete history of any one session was assumed available, and successive transactions between the user and the remote computer could have access to this history. A good example of this model is the Chemical Abstracts on-line service introduced in the early 1980s, where the user could locally perform a series of defined searches on a central computer system located in Columbus, Ohio. Each query was saved as a named set (LI, L2, etc.), and in subsequent operations, these sets could serve as the starting point for further elaboration of the searches. 

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