1. signal processing
    cl-collider - cl-collider is an interface to the SuperCollider audio synthesis server cl-fftw3 - cl-fftw3 provides a CFFI interface for Common Lisp programs to use the FFTW3 Fourier transform library cl-jointgen - CL-JOINTGEN is a Common Lisp implementation of the Joint Generation Algorithm for computing the dual of a monotone boolean function d4-wavelet-transform - An implementation of the D4 wavelet transform for Common Lisp Incudine - Incudine is a music/DSP programming environment for Common Lisp SOUNDLAB - Lazy signal synthesis based on combinators
  2. Smart cards
    Free software related to integrated chip cards (ICC) with contacts (ISO/IEC 7816) or contactless (ISO/IEC 14443)
  3. Standards
    The wonderful thing about standards is that there are so many to choose from.-- Grace Hopper
  4. Statistics
    Statistics libraries/packages
  5. stream
    Common Lisp provides streams, which can be used with an input or output function to identify an appropriate source or sink of characters or bytes for that operation
  6. string
    Functions and libraries for string manipulation
  7. StructuredStorage
    aka NOSQL
  8. system programming
    Libraries having to do with system programming - memory management, timers, system calls, etc
  9. Tachyon Common Lisp
    Tachyon Common Lisp (product name OKI Common Lisp) is an implementation of Common Lisp by OKI Electric Industry
  10. templating library
    Templating libraries: (main topic: templating library)