| MSC 1991 | Number of Preprints | |
| 68-XX | Computer science
| 40 | browse |
| 68-00 | General reference works (handbooks, dictionaries, bibliographies, etc.)
| 40 | browse |
| 68-01 | Instructional exposition (textbooks, tutorial papers, etc.)
| 40 | browse |
| 68-02 | Research exposition (monographs, survey articles)
| 40 | browse |
| 68-03 | Historical
| 40 | browse |
| 68-04 | Explicit machine computation and programs (not the theory of computation or programming)
| 40 | browse |
| 68-06 | Proceedings, conferences, collections, etc.
| 40 | browse |
| 68Mxx | Computer system organization
| 42 | browse |
| 68Nxx | Software
| 15 | browse |
| 68Pxx | Theory of data
| 22 | browse |
| 68Qxx | Theory of computing
| 336 | browse |
| 68Rxx | Discrete mathematics in relation to computer science
| 302 | browse |
| 68S05 | Mathematical linguistics
| - | |
| 68Txx | Artificial intelligence
| 62 | browse |
| 68Uxx | Computing methodologies
| 190 | browse |