Unix Genealogy 1969-2026。Multics (1965 MIT+GE+Bell Labs共同→1969 Bell撤退)→Unix V1 (1970年1月 Ken Thompson+Dennis Ritchie+Brian Kernighan・PDP-7 Assembly→PDP-11)+V6 (1975 Lions Bookで初公開)+V7 (1979・Bourne Shell・C言語移植性確保 万人共有 K&R The C Programming Language 1978)・BSD 1.0 (1977 UC Berkeley CSRG・Bill Joy・vi+csh)+2BSD+3BSD+4BSD (1980)+4.2BSD (1983 TCP/IP Sockets+NFS)+4.3BSD (1986)+4.4BSD (1993 Last from Berkeley・USL裁判)・Net/2→386BSD (1992)→FreeBSD+NetBSD+OpenBSD (1993)・FreeBSD 14.2 (2024)+FreeBSD 15 (2025)・OpenBSD 7.6 (2024年10月)+7.7 (2025)・NetBSD 10.1 (2024)+NetBSD 11 (2025)・DragonFly BSD (2003 Matt Dillon)・System V (1983 AT&T)→Solaris (Sun 1992 SunOS 5.0)+OpenSolaris (2005)→illumos+OmniOS+OpenIndiana・SCO Unix→SCO OpenServer (裁判IBM 2003)・HP-UX (1984 PA-RISC→Itanium・EoL 2025)・IBM AIX (1986 POWER・AIX 7.3 2021・現役)・SGI IRIX (1988 MIPS→終焉)・QNX (1982 BlackBerry)・Mach (CMU 1985 NeXT/macOS基盤)・Darwin (Apple OSX/macOS基盤 BSD+Mach)・GNU Hurd (停滞)・MINIX (1987 Andrew Tanenbaum・Linux原型)・Plan 9 from Bell Labs (1992 Unix後継幻)・¥0 OSS-¥¥¥¥¥¥¥/Lic 2026。