65Y99 None of the above, but in this section

65Z99 None of the above, but in this section

68-XX Computer science {For papers involving machine computations and programs in a specific mathematical area, see Section –04 in that area}

68-00 General reference works (handbooks, dictionaries, bibliographies, etc.)

68-01 Instructional exposition (textbooks, tutorial papers, etc.)

68-02 Research exposition (monographs, survey articles)

68-03 Historical (must also be assigned at least one classification number from Section 01)

68-04 Explicit machine computation and programs (not the theory of computation or programming)

68-06 Proceedings, conferences, collections, etc.

68M07 Mathematical problems of computer architecture

68M10 Network design and communication [See also <a href="#code:68R10">68R10</a>, <a href="#code:90B18">90B18</a>]

68M11 Internet topics [See also <a href="#code:68U35">68U35</a>]

68M15 Reliability, testing and fault tolerance [See also <a href="#code:94C12">94C12</a>]

68M20 Performance evaluation; queueing; scheduling [See also <a href="#code:60K25">60K25</a>, <a href="#code:90Bxx">90Bxx</a>]

68M99 None of the above, but in this section

68N18 Functional programming and lambda calculus [See also <a href="#code:03B40">03B40</a>]

68N19 Other programming techniques (object-oriented, sequential, concurrent, automatic, etc.)

68N30 Mathematical aspects of software engineering (specification, verification, metrics, requirements, etc.)

68N99 None of the above, but in this section

68P25 Data encryption [See also <a href="#code:94A60">94A60</a>, <a href="#code:81P94">81P94</a>]

68P30 Coding and information theory (compaction, compression, models of communication, encoding schemes, etc.) [See also <a href="#code:94Axx">94Axx</a>]

68P99 None of the above, but in this section

68Q05 Models of computation (Turing machines, etc.) [See also <a href="#code:03D10">03D10</a>,  68Q12, <a href="#code:81P68">81P68</a>]

68Q10 Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.) [See also 68Q85]