The 1998 ACM Computing Classification System

  1. Radiometry
  2. Radiosity
  3. Random number generation
  4. Range data
  5. Rapid prototyping
  6. Raster display devices
  7. Rational approximation
  8. Raytracing
  9. Read-only memory (ROM)
  10. Real time
  11. Real-time and embedded systems
  12. Real-time systems and embedded systems
  13. Receivers
  14. Reconstruction
  15. Record classification
  16. Records
  17. Recovery and restart
  18. Recurrences and difference equations
  19. Recursion
  20. Recursive function theory
  21. Reducibility and completeness
  22. Redundant design
  23. Redundant design
  24. Redundant design
  25. Redundant design
  26. Redundant design
  27. Redundant design
  28. Redundant design
  29. Reengineering
  30. Reentrant code
  31. REFERENCE
  32. Reflectance
  33. Region growing, partitioning
  34. REGISTER-TRANSFER-LEVEL IMPLEMENTATION
  35. Registration
  36. Regulation
  37. Regulation
  38. Relation systems
  39. Relational databases
  40. Relations among complexity classes
  41. Relations among complexity measures
  42. Relations among modes
  43. Relations between models
  44. Relativized computation
  45. Relaxation
  46. Relevance feedback
  47. Reliability
  48. Reliability
  49. Reliability and life testing
  50. Reliability and robustness
  51. Reliability and Testing
  52. Reliability and Testing
  53. Reliability and Testing
  54. Reliability, availability, and serviceability
  55. Reliability, Testing, and Fault-Tolerance
  56. Reliability, Testing, and Fault-Tolerance
  57. Reliability, Testing, and Fault-Tolerance
  58. Reliability, Testing, and Fault-Tolerance
  59. Remote systems
  60. Renewal theory
  61. Report writers
  62. Representation
  63. Representation languages
  64. Representations (general and polynomial)
  65. Representations (procedural and rule-based)
  66. Representations, data structures, and transforms
  67. Requirements/Specifications
  68. Resolution
  69. Restoration
  70. Restructuring, reverse engineering, and reengineering
  71. Retargetable compilers
  72. Retrieval models
  73. Reusable libraries
  74. Reusable software
  75. Reusable Software
  76. Reuse models
  77. RISC/CISC, VLIW architectures
  78. Robotics
  79. Robust regression
  80. Roots of Nonlinear Equations
  81. Routers
  82. Routing and layout
  83. Routing protocols
  84. Rule-based databases
  85. Run-time environments