The comp.* hierarchy is a major class of newsgroups in Usenet, containing all newsgroups whose name begins with "comp.", organized hierarchically.
comp.* groups discuss various computer, technology, and programming issues. Some groups can even offer peer-to-peer technical support.
| Newsgroup | Topic |
| comp.ai | artificial intelligence |
| comp.arch | computer architecture |
| comp.bbs | Bulletin board system system discussion and advertisement |
| comp.dcom.telecom | telecommunications systems |
| comp.dsp | Digital signal processing |
| comp.graphics.apps.photoshop | Adobe Photoshop, Illustrator, and InDesign. |
| comp.graphics.api.opengl | OpenGL |
| comp.infosystems.gemini | Gemini space |
| comp.internet.services.wiki | Wikis |
| comp.lang.asm.x86 | assembly language for x86-based computer systems. |
| comp.lang.c | C programming language |
| comp.lang.c++ | C++ programming language |
| comp.lang.java.help | Java programming language help |
| comp.lang.javascript | JavaScript programming language |
| comp.lang.perl.misc | Perl programming language |
| comp.lang.python | Python programming language |
| comp.os.linux.misc | Linux operating system |
| comp.os.minix | Minix operating system |
| comp.programming | Miscellaneous discussion of programming |
| comp.robotics.misc | All aspects of robots and their applications |
| comp.robotics.research | Academic, government and industry research in robotics |
| comp.software-eng | software engineering |
| comp.soft-sys.matlab | MathWorks calculation and visualization package |
| comp.sources.d | any computer sources |
| comp.sources.wanted | Requests for software and bug fixes |
| comp.theory | Theoretical computer science |
| comp.theory.cell-automata | cellular automata |
| comp.theory.self-org-sys | Self-organizing systems |
| comp.theory.dynamic-sys | Ergodic theory and dynamical systems |
| comp.theory.info-retrieval | Information retrieval |
| comp.windows.x | X window system |
| comp.windows.x.kde | KDE desktop environment |
| Newsgroup | Topic | |
| comp.sources.unix | Postings of public-domain sources for Unix. (Moderated) | |
| comp.windows.news | Discussion about Sun Microsystems NeWS and PostScript related technologies.It often got hijacked by users that weren't aware of the original purpose of the group, believing it wasa newsgroup about Windows and Microsoft. This often led to flame wars between the long time users, who were upset from this situation, and the unaware users. |