- A - general applications (domain specific programs etc.)
- BIO - Biosciences (biology, bioinformatics)
- HEP - High Energy Physics (CMS, ATLAS, LHCb etc)
- MATH - general math packets
- CHEM - Chemistry (Quantum chemistry etc)
- GRAPHICAL - Graphical/rendering
- NS - Network simulations
- STATISTICS - Statistical packages
- LANG - Linguistic applications and databases
- E - runtime environments (compilers, VMs, MPI flavours)
- DEVEL - development tools
- GCC
- G95
- SUBVERSION
- JAVA - Java SDKs and VMs
- J2SDK
- PARALLEL - MPI, PVM, etc
- T - new and unstable programs/environments