GNU Hurd Tru64 UNIX Motif (software) Unix International Unix wars LessTif Common Desktop Environment Darwin (operating system) Boehm garbage collector List of Unix systems MkLinux The Open Group History of the Berkeley Software Distribution Richard Rashid Comparison of Java virtual machines Unix Cryptlib Single UNIX Specification History of Unix Berkeley Software Distribution Mach (kernel) Knowledge commons Comparison of IRC clients OpenDroneMap Jamovi Comparison of BSD operating systems X/Open List of operating systems OpenSSL PA-RISC Crypt (C) Timeline of operating systems Open Database Connectivity Kernel (operating system) Microkernel Lo…

otus 1-2-3 Santa Cruz Operation Digital Equipment Corporation Oracle Solaris Pkgsrc List of electronic laboratory notebook software packages OpenLisp Comparison of operating system kernels Comparison of operating systems