1991 ACM Computing Classification System
Valid through 1997
(Superseded by the 1998 Version)
The full ACM classification scheme involves three concepts (described more fully in the Introduction): general terms, implicit subject descriptors, and the four-level tree (containing three numbered levels and a fourth unnumbered level).
These apply to any elements of the tree that are relevant.
- Human factors
- Legal aspects
Implicit Subject Descriptors
Names of languages of systems may be used under appropriate nodes, e.g., Pascal under D.3.2 (Language Classifications) or VM under D.4.0 (Operating Systems -- General).
Top Two Levels of the ACM Computing Classification System (1991)
Full Tree with Subject Descriptors
The full ACM classification tree is available as a hypertext document, as a single document, or as an ascii file. (An asterisk (*) next to a subject descriptor indicates that the classification is no longer be used as of January 1991, but that the item is still searchable for previously classified documents.)
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MAC / 95-Nov-8
Tom Horton / 96-July-16