bsd-family-tree revision 1.21
11.6SitojunThe UNIX system family tree: Research and BSD 21.6Sitojun--------------------------------------------- 31.1Sabs 41.1SabsFirst Edition (V1) 51.1Sabs | 61.1SabsSecond Edition (V2) 71.1Sabs | 81.1SabsThird Edition (V3) 91.1Sabs | 101.1SabsFourth Edition (V4) 111.1Sabs | 121.1SabsFifth Edition (V5) 131.1Sabs | 141.1SabsSixth Edition (V6) -----* 151.1Sabs \ | 161.1Sabs \ | 171.1Sabs \ | 181.1SabsSeventh Edition (V7) | 191.1Sabs \ | 201.1Sabs \ 1BSD 211.1Sabs 32V | 221.1Sabs \ 2BSD---------------* 231.1Sabs \ / | 241.1Sabs \ / | 251.1Sabs \/ | 261.1Sabs 3BSD | 271.1Sabs | | 281.1Sabs 4.0BSD 2.7.9BSD 291.1Sabs | | 301.6Sitojun 4.1BSD --------------> 2.8BSD 311.6Sitojun | | 321.6Sitojun 4.1aBSD -----------\ | 331.6Sitojun | \ | 341.6Sitojun 4.1bBSD \ | 351.6Sitojun | \ | 361.6Sitojun *------ 4.1cBSD --------------> 2.9BSD 371.6Sitojun / | | 381.6SitojunEighth Edition | 2.9BSD-Seismo 391.1Sabs | | | 401.1Sabs +----<--- 4.2BSD 2.9.1BSD 411.1Sabs | | | 421.1Sabs +----<--- 4.3BSD -------------> 2.10BSD 431.1Sabs | | / | 441.1SabsNinth Edition | / 2.10.1BSD 451.1Sabs | 4.3BSD Tahoe-----+ | 461.1Sabs | | \ | 471.1Sabs | | \ | 481.1Sabs v | 2.11BSD 491.1SabsTenth Edition | | 501.6Sitojun | 2.11BSD rev #430 511.1Sabs 4.3BSD NET/1 | 521.1Sabs | v 531.1Sabs 4.3BSD Reno 541.1Sabs | 551.1Sabs *---------- 4.3BSD NET/2 -------------------+-------------* 561.1Sabs | | | | 571.7Sitojun386BSD 0.0 | | BSD/386 ALPHA 581.1Sabs | | | | 591.7Sitojun386BSD 0.1 ------------>+ | BSD/386 0.3.[13] 601.1Sabs | \ | 4.4BSD Alpha | 611.7Sitojun | 386BSD 1.0 | | BSD/386 0.9.[34] 621.1Sabs | | 4.4BSD | 631.1Sabs | | / | | 641.1Sabs | | 4.4BSD-Encumbered | | 651.7Sitojun | NetBSD 0.8 | BSD/386 1.0 661.1Sabs | | | | 671.7SitojunFreeBSD 1.0 NetBSD 0.9 | BSD/386 1.1 681.7Sitojun | | .----- 4.4BSD Lite | 691.7SitojunFreeBSD 1.1 | / / | \ | 701.7Sitojun | | / / | \ | 711.7SitojunFreeBSD 1.1.5 .---|--------' / | \ | 721.7Sitojun | / | / | \ | 731.7SitojunFreeBSD 1.1.5.1 / | / | \ | 741.7Sitojun | / NetBSD 1.0 <-' | \ | 751.7Sitojun | / | | \ | 761.7SitojunFreeBSD 2.0 <--' | | BSD/OS 2.0 771.7Sitojun | \ | | 781.7SitojunFreeBSD 2.0.5 \ | BSD/OS 2.0.1 791.11Sitojun | .-----\------------- 4.4BSD Lite2 | 801.11Sitojun | | \ | | | | | 811.11Sitojun | | .-----|------Rhapsody | | | | 821.11Sitojun | | | | NetBSD 1.3 | | | 831.11Sitojun | | | | OpenBSD 2.3 | | 841.11Sitojun | | | | BSD/OS 3.0 | 851.11SitojunFreeBSD 2.1 | | | | 861.11Sitojun | | | | NetBSD 1.1 ------. BSD/OS 2.1 871.11Sitojun | FreeBSD 2.1.5 | | | \ | 881.11Sitojun | | | | NetBSD 1.2 \ BSD/OS 3.0 891.11Sitojun | FreeBSD 2.1.6 | | | \ OpenBSD 2.0 | 901.11Sitojun | | | | | \ | | 911.11Sitojun | FreeBSD 2.1.6.1 | | | \ | | 921.11Sitojun | | | | | \ | | 931.11Sitojun | FreeBSD 2.1.7 | | | | | | 941.11Sitojun | | | | | NetBSD 1.2.1 | | 951.11Sitojun | FreeBSD 2.1.7.1 | | | | | 961.11Sitojun | | | | | | 971.11Sitojun | | | | | | 981.11Sitojun *-FreeBSD 2.2 | | | | | 991.11Sitojun | \ | | | | | 1001.11Sitojun | FreeBSD 2.2.1 | | | | | 1011.11Sitojun | | | | | | | 1021.11Sitojun | FreeBSD 2.2.2 | | | OpenBSD 2.1 | 1031.11Sitojun | | | | | | | 1041.11Sitojun | FreeBSD 2.2.5 | | | | | 1051.11Sitojun | | | | | OpenBSD 2.2 | 1061.11Sitojun | | | | NetBSD 1.3 | | 1071.11Sitojun | FreeBSD 2.2.6 | | | | | | 1081.11Sitojun | | | | | NetBSD 1.3.1 | BSD/OS 3.1 1091.11Sitojun | | | | | | OpenBSD 2.3 | 1101.11Sitojun | | | | | NetBSD 1.3.2 | | 1111.11Sitojun | FreeBSD 2.2.7 | | | | | | 1121.11Sitojun | | | | | | | BSD/OS 4.0 1131.11Sitojun | v | | | | | | 1141.11Sitojun | FreeBSD 2.2.8 | | | | | | 1151.11Sitojun | | | | | OpenBSD 2.4 | 1161.11SitojunFreeBSD 3.0 <--------* | | v | | 1171.11Sitojun | | | NetBSD 1.3.3 | | 1181.11Sitojun *---FreeBSD 3.1 | | | | 1191.11Sitojun | | | | | BSD/OS 4.0.1 1201.11Sitojun | FreeBSD 3.2----* | NetBSD 1.4 OpenBSD 2.5 | 1211.11Sitojun | | | | | | | | | 1221.11Sitojun | | | | | | | | | 1231.11Sitojun | | | | | | | | | 1241.11Sitojun | FreeBSD 3.3 | | | | NetBSD 1.4.1 | | 1251.11Sitojun | | | | | | | OpenBSD 2.6 | 1261.11Sitojun | FreeBSD 3.4 | | | | | | | 1271.11Sitojun | | | | | | | | BSD/OS 4.1 1281.11SitojunFreeBSD 4.0 | | | | | NetBSD 1.4.2 | | 1291.11Sitojun | | | | | | | | | 1301.11Sitojun | | | | | | | | | 1311.11Sitojun | FreeBSD 3.5 | | | | | OpenBSD 2.7 | 1321.11Sitojun | | | | | | | | | 1331.11Sitojun | FreeBSD 3.5.1 | | | | | | | 1341.11Sitojun | | | | | | | | 1351.11Sitojun *---FreeBSD 4.1 | | | | | | | 1361.11Sitojun | | | | (?) | | | | 1371.11Sitojun | FreeBSD 4.1.1 | | / | | | | 1381.16Sjunyoung | | | | / | | | | 1391.11Sitojun | FreeBSD 4.2 Darwin/ | NetBSD 1.4.3 | | 1401.19Swiz | | Mac OS X | | OpenBSD 2.8 BSD/OS 4.2 1411.19Swiz | | | | v | | 1421.13Sjunyoung | | | | | | 1431.11Sitojun | | 10.0 NetBSD 1.5 | | 1441.17Sjunyoung | FreeBSD 4.3 | | | | | 1451.17Sjunyoung | | | | | OpenBSD 2.9 | 1461.17Sjunyoung | | | | NetBSD 1.5.1 | | 1471.17Sjunyoung | | | | | | | 1481.17Sjunyoung | FreeBSD 4.4-. | | NetBSD 1.5.2 | | 1491.17Sjunyoung | | | Mac OS X | | | | 1501.17Sjunyoung | | | 10.1 | | OpenBSD 3.0 | 1511.17Sjunyoung | FreeBSD 4.5 | | | | | | 1521.17Sjunyoung | | \ | | | | BSD/OS 4.3 1531.17Sjunyoung | FreeBSD 4.6 \ | | | OpenBSD 3.1 | 1541.21Scjep | | \ | | NetBSD 1.5.3 | | 1551.21Scjep | FreeBSD 4.6.2 Mac OS X | | | | 1561.21Scjep | | 10.2 | v | | 1571.21Scjep | FreeBSD 4.7 | | | | 1581.21Scjep | | | NetBSD 1.6 OpenBSD 3.2 | 1591.21Scjep | FreeBSD 4.8 | | | | | 1601.21Scjep | | | | NetBSD 1.6.1 | | 1611.21Scjep | v | | | OpenBSD 3.3 | 1621.21Scjep | | | v | | 1631.21ScjepFreeBSD 5.0 | | | | 1641.21Scjep | | | | BSD/OS 5.0 1651.21ScjepFreeBSD 5.1 | NetBSD -current OpenBSD -current | 1661.21Scjep | | | | v 1671.21ScjepFreeBSD 5 -current | | | 1681.11Sitojun | | | | 1691.17Sjunyoung v v v v 1701.1Sabs 1711.1SabsTime 1721.1Sabs---------------- 1731.1Sabs 1741.7SitojunTime tolerance +/- 6 months, depending on which book/article you read; if it 1751.7Sitojunwas the announcement in Usenet or if it was available as tape. 1761.1Sabs 1771.1Sabs[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 1781.1Sabs and John Quarterman. The Design and Implementation of 1791.1Sabs the 4.4BSD Operating System. 1801.11Sitojun[APL] Apple website [http://www.apple.com/macosx/] 1811.17Sjunyoung[BSDI] Berkeley Software Design, Inc. 1821.1Sabs[DOC] README, COPYRIGHT on tape. 1831.17Sjunyoung[FBD] FreeBSD Project, The. 1841.1Sabs[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 1851.1Sabs Volume 11, Info 4, April, 1987. 1861.1Sabs[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 1871.1Sabs comp.bugs.4bsd.ucb-fixes, June 15, 1988. 1881.17Sjunyoung[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 1891.17Sjunyoung Changes in the Kernel in 2.9BSD. Second Berkeley Software 1901.17Sjunyoung Distribution UNIX Version 2.9, July, 1983. 1911.1Sabs[NBD] NetBSD Project, The. 1921.1Sabs[OBD] OpenBSD Project, The. 1931.17Sjunyoung[QCU] Salus, Peter H. A quarter century of UNIX. 1941.17Sjunyoung[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 1951.17Sjunyoung[USE] Usenet announcement. 1961.17Sjunyoung[WRS] Wind River Systems, Inc. 1971.1Sabs[dmr] Dennis Ritchie, via E-Mail 1981.1Sabs 1991.1SabsMultics 1965 2001.6SitojunUNIX Summer 1969 2011.1Sabs DEC PDP-7 2021.1SabsFirst Edition 1971-11-03 [QCU] 2031.1Sabs DEC PDP-11/20, Assembler 2041.1SabsSecond Edition 1972-06-12 [QCU] 2051.6Sitojun 10 UNIX installations 2061.1SabsThird Edition 1973-02-xx [QCU] 2071.1Sabs Pipes, 16 installations 2081.1SabsFourth Edition 1973-11-xx [QCU] 2091.1Sabs rewriting in C effected, 2101.1Sabs above 30 installations 2111.1SabsFifth Edition 1974-06-xx [QCU] 2121.1Sabs above 50 installations 2131.1SabsSixth Edition 1975-05-xx [QCU] 2141.1Sabs port to DEC Vax 2151.1SabsSeventh Edition 1979-01-xx [QCU] 2161.6Sitojun first portable UNIX 2171.6SitojunEighth Edition 1985-02-xx [QCU] 2181.1Sabs VAX 11/750, VAX 11/780 [dmr] 2191.1Sabs descended from 4.1c BSD [dmr] 2201.1Sabs descended from 4.1 BSD [44B] 2211.7Sitojun scooping-out and replacement of the character-device 2221.1Sabs and networking part by the streams mechanism 2231.1Sabs 2241.1SabsNinth Edition 1986-09-xx [QCU] 2251.1SabsTenth Edition 1989-10-xx [QCU] 2261.1Sabs 2271.1Sabs1BSD late 1977 2281.1Sabs 1978-03-09 [QCU] 2291.1Sabs PDP-11, Pascal, ex(1) 2301.1Sabs 30 free copies of 1BSD sent out 2311.1Sabs 35 tapes sold for 50 USD [QCU] 2321.1Sabs2BSD mid 1978 [QCU] 2331.1Sabs 75 2BSD tapes shipped 2341.1Sabs2.7.9BSD ?? [SMS] 2351.1Sabs2.8BSD 1981-07-xx [KSJ] 2361.1Sabs 2371.1Sabs2.8.1BSD 1982-01-xx [QCU] 2381.1Sabs set of performance improvements 2391.1Sabs2.9BSD 1983-07-xx [KSJ] 2401.1Sabs2.9.1BSD 1983-11-xx 2411.1Sabs2.9BSD-Seismo 1985-08-xx [SMS] 2421.1Sabs2.10BSD 1987-04-xx [KKK] 2431.1Sabs2.10.1BSD 1989-01-xx [SMS] 2441.1Sabs2.11BSD 1992-02-xx [SMS] 2451.6Sitojun2.11BSD rev #430 1999-12-13 [SMS] 2461.1Sabs 2471.1Sabs32V 1978-1[01]-xx [QCU] 2481.1Sabs3BSD late 1979 [QCU] 2491.1Sabs virtual memory, page replacement, 2501.1Sabs demand paging 2511.1Sabs4.0BSD 1980-10-xx 2521.13Sjunyoung4.1BSD 1981-07-08 [DOC] 2531.1Sabs4.1aBSD 1982-04-xx 2541.1Sabs alpha release, 100 sites, networking [44B] 2551.1Sabs4.1bBSD internal release, fast filesystem [44B] 2561.1Sabs4.1cBSD late 1982 2571.1Sabs beta release, IPC [44B] 2581.1Sabs4.2BSD 1983-09-xx [QCU] 2591.13Sjunyoung 1983-08-03 [DOC] 2601.1Sabs4.3BSD 1986-06-xx [QCU] 2611.13Sjunyoung 1986-04-05 [KB], [DOC] 2621.13Sjunyoung4.3BSD Tahoe 1988-06-15 [QCU], [DOC] 2631.1Sabs4.3BSD NET/1 1988-11-xx [QCU] 2641.13Sjunyoung 1989-01-01 [DOC] 2651.13Sjunyoung4.3BSD Reno 1990-06-29 [QCU], [DOC] 2661.13Sjunyoung4.3BSD NET/2 1991-06-28 [QCU], [DOC] 2671.7Sitojun 2681.7SitojunBSD/386 ALPHA 1991-12-xx [BSDI] 2691.7Sitojun first code released to people outside BSDI 2701.1Sabs386BSD 0.0 1992-02-xx [DOC] 2711.7SitojunBSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 2721.7SitojunBSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 2731.7Sitojun386BSD 0.1 1992-07-28 [DOC] 2741.1Sabs4.4BSD Alpha 1992-07-07 2751.7SitojunBSD/386 0.9.3 1992-10-xx [BSDI] 2761.7Sitojun first external gamma; G customers 2771.7SitojunBSD/386 0.9.4 1992-12-xx [BSDI] 2781.7Sitojun would have been 1.0 except for request 2791.7Sitojun for preliminary injunction 2801.7SitojunBSD/386 1.0 1993-03-xx [BSDI] 2811.7Sitojun injunction denied; first official release 2821.6SitojunNetBSD 0.8 1993-04-20 [NBD] 2831.1Sabs4.4BSD 1993-06-01 [USE] 2841.1SabsNetBSD 0.9 1993-08-23 [NBD] 2851.8SitojunFreeBSD 1.0 1993-11-01 [FBD] 2861.7SitojunBSD/386 1.1 1994-02-xx [BSDI] 2871.1Sabs4.4BSD Lite 1994-03-01 [USE] 2881.6SitojunFreeBSD 1.1 1994-04-xx [FBD] 2891.6SitojunFreeBSD 1.1.5.1 1994-07-xx [FBD] 2901.6Sitojun supersedes 1.1.5 3 days after release. 2911.6SitojunNetBSD 1.0 1994-10-26 [NBD] 2921.1Sabs386BSD 1.0 1994-11-12 [USE] 2931.6SitojunFreeBSD 2.0 1995-01-xx [FBD] 2941.7SitojunBSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 2951.7SitojunFreeBSD 2.0.5 1995-06-10 [FBD] 2961.7SitojunBSD/OS 2.0.1 1995-06-xx [BSDI] 2971.6Sitojun4.4BSD Lite Release 2 1995-06-xx [44B] 2981.6Sitojun the true final distribution from the CSRG 2991.7SitojunFreeBSD 2.1.0 1995-11-19 [FBD] 3001.1SabsNetBSD 1.1 1995-11-26 [NBD] 3011.7SitojunBSD/OS 2.1 1996-01-xx [BSDI] 3021.7SitojunFreeBSD 2.1.5 1996-07-14 [FBD] 3031.1SabsNetBSD 1.2 1996-10-04 [NBD] 3041.1SabsOpenBSD 2.0 1996-10-18 [OBD] 3051.7SitojunFreeBSD 2.1.6 1996-11-16 [FBD] 3061.7SitojunFreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 3071.11SitojunRhapsody 1997-xx-xx 3081.7SitojunFreeBSD 2.1.7 1997-02-20 [FBD] 3091.7SitojunBSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 3101.7SitojunFreeBSD 2.2.0 1997-03-16 [FBD] 3111.7SitojunFreeBSD 2.2.1 1997-03-25 [FBD] 3121.7SitojunFreeBSD 2.2.2 1997-05-16 [FBD] 3131.6SitojunNetBSD 1.2.1 1997-05-20 [NBD] (patch release) 3141.1SabsOpenBSD 2.1 1997-06-01 [OBD] 3151.7SitojunFreeBSD 2.2.5 1997-10-22 [FBD] 3161.1SabsOpenBSD 2.2 1997-12-01 [OBD] 3171.5SabsNetBSD 1.3 1998-01-04 [NBD] 3181.7SitojunFreeBSD 2.2.6 1998-03-25 [FBD] 3191.6SitojunNetBSD 1.3.1 1998-03-09 [NBD] (patch release) 3201.7SitojunBSD/OS 3.1 1998-03-xx [BSDI] 3211.1SabsOpenBSD 2.3 1998-05-19 [OBD] 3221.6SitojunNetBSD 1.3.2 1998-05-29 [NBD] (patch release) 3231.7SitojunFreeBSD 2.2.7 1998-07-22 [FBD] 3241.7SitojunBSD/OS 4.0 1998-08-xx [BSDI] 3251.7Sitojun 2-lock MP support, ELF executables 3261.6SitojunFreeBSD 3.0 1998-10-16 [FBD] 3271.7Sitojun FreeBSD-3.0 is a snapshot from -current, 3281.7Sitojun while 3.1 and 3.2 are from 3.x-stable which 3291.6Sitojun was branched quite some time after 3.0-release 3301.1SabsFreeBSD 2.2.8 1998-11-29 [FBD] 3311.1SabsOpenBSD 2.4 1998-12-01 [OBD] 3321.6SitojunNetBSD 1.3.3 1998-12-23 [NBD] (patch release) 3331.6SitojunFreeBSD 3.1 1999-02-15 [FBD] 3341.7SitojunBSD/OS 4.0.1 1999-03-xx [BSDI] 3351.4SabsNetBSD 1.4 1999-05-12 [NBD] 3361.6SitojunFreeBSD 3.2 1999-05-17 [FBD] 3371.4SabsOpenBSD 2.5 1999-05-19 [OBD] 3381.6SitojunNetBSD 1.4.1 1999-08-26 [NBD] (patch release) 3391.6SitojunFreeBSD 3.3 1999-09-17 [FBD] 3401.6SitojunOpenBSD 2.6 1999-12-01 [OBD] 3411.6SitojunFreeBSD 3.4 1999-12-20 [FBD] 3421.7SitojunBSD/OS 4.1 1999-12-xx [BSDI] 3431.6SitojunFreeBSD 4.0 2000-03-13 [FBD] 3441.6SitojunNetBSD 1.4.2 2000-03-19 [NBD] (patch release) 3451.6SitojunOpenBSD 2.7 2000-06-15 [OBD] 3461.6SitojunFreeBSD 3.5 2000-06-24 [FBD] 3471.6SitojunFreeBSD 4.1 2000-07-27 [FBD] 3481.6SitojunFreeBSD 3.5.1 2000-07-28 [FBD] 3491.6SitojunFreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 3501.7SitojunFreeBSD 4.2 2000-11-21 [FBD] 3511.7SitojunNetBSD 1.4.3 2000-11-25 [NBD] (patch release) 3521.7SitojunBSD/OS 4.2 2000-11-29 [BSDI] 3531.7SitojunOpenBSD 2.8 2000-12-01 [OBD] 3541.7SitojunNetBSD 1.5 2000-12-06 [NBD] 3551.11SitojunMac OS X 10.0 2001-03-24 [APL] 3561.8SitojunFreeBSD 4.3 2001-04-20 [FBD] 3571.8SitojunOpenBSD 2.9 2001-06-01 [OBD] 3581.11SitojunNetBSD 1.5.1 2001-07-11 [NBD] (patch release) 3591.11SitojunNetBSD 1.5.2 2001-09-13 [NBD] (patch release) 3601.11SitojunFreeBSD 4.4 2001-09-18 [FBD] 3611.17SjunyoungMac OS X 10.1 2001-09-29 [APL] 3621.13SjunyoungOpenBSD 3.0 2001-12-01 [OBD] 3631.13SjunyoungFreeBSD 4.5 2002-01-29 [FBD] 3641.17SjunyoungBSD/OS 4.3 2002-03-14 [WRS] 3651.17SjunyoungOpenBSD 3.1 2002-05-19 [OBD] 3661.17SjunyoungFreeBSD 4.6 2002-06-15 [FBD] 3671.14SjunyoungNetBSD 1.5.3 2002-07-22 [NBD] (patch release) 3681.17SjunyoungFreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 3691.17SjunyoungMac OS X 10.2 2002-08-23 [APL] 3701.17SjunyoungNetBSD 1.6 2002-09-14 [NBD] 3711.17SjunyoungFreeBSD 4.7 2002-10-08 [FBD] 3721.19SwizOpenBSD 3.2 2002-11-01 [OBD] 3731.20SitojunFreeBSD 5.0 2003-01-17 [FBD] 3741.20Sitojun FreeBSD 5.0 is a separate branch off of 3751.20Sitojun -current, similar to 3.0. 3761.20SitojunFreeBSD 4.8 2003-04-03 [FBD] 3771.20SitojunNetBSD 1.6.1 2003-04-21 [NBD] (patch release) 3781.20SitojunOpenBSD 3.3 2003-05-01 [OBD] 3791.21ScjepBSD/OS 5.0 2003-05-?? [WRS] 3801.21ScjepFreeBSD 5.1 2003-06-09 [FBD] 3811.20Sitojun 3821.1Sabs 3831.1SabsBibliography 3841.1Sabs------------------------ 3851.1Sabs 3861.1SabsLeffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 3871.1SabsQuarterman. The Design and Implementation of the 4.3BSD UNIX Operating 3881.1SabsSystem. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 3891.1Sabs 3901.1SabsSalus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 3911.1SabsCompany, Inc., 1994. ISBN 0-201-54777-5 3921.1Sabs 3931.1SabsMcKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 3941.1SabsQuarterman. The Design and Implementation of the 4.4BSD Operating 3951.1SabsSystem. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 3961.1Sabs 3971.1SabsDoug McIlroy. Research Unix Reader. 3981.1Sabs 3991.1SabsMichael G. Brown. The Role of BSD in the Development of Unix. 4001.1SabsPresented to the Tasmanian Unix Special Interest Group of the 4011.1SabsAustralian Computer Society, Hobart, August 1993. 4021.1Sabs 4031.6SitojunPeter H. Salus. Unix at 25. Byte Magazine, October 1994. 4041.9SitojunURL: http://www.byte.com/art/9410/sec8/art3.htm (unreachable) 4051.1Sabs 4061.19SwizAndreas Klemm, Lars K�ller. If you're going to San Francisco ... 4071.1SabsDie freien BSD-Varianten von Unix. c't April 1997, page 368ff. 4081.1Sabs 4091.1SabsBSD Release Announcements collection. 4101.6SitojunURL: http://www.de.FreeBSD.org/de/ftp/releases/ 4111.1Sabs 4121.1SabsBSD Hypertext Man Pages 4131.9SitojunURL: http://www.FreeBSD.org/cgi/man.cgi 4141.6Sitojun 4151.6SitojunUNIX history graphing project 4161.9SitojunURL: http://minnie.tuhs.org/Unix_History/index.html 4171.6Sitojun 4181.6SitojunUNIX history 4191.17SjunyoungURL: http://www.levenez.com/unix/ 4201.1Sabs 4211.8SitojunJames Howard: The BSD Family Tree 4221.9SitojunURL: http://www.daemonnews.org/200104/bsd_family.html 4231.8Sitojun("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 4241.8Sitojun 4251.8Sitojun 4261.1SabsAcknowledgments 4271.1Sabs--------------- 4281.1Sabs 4291.6SitojunJosh Gilliam for suggestions, bug fixes, and finding very old 4301.1Sabsoriginal BSD announcements from Usenet or tapes. 4311.1Sabs 4321.1SabsSteven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 4331.1Sabs 4341.1Sabs-- 4351.8SitojunCopyright (c) 1997-2001 Wolfram Schneider <wosch@FreeBSD.ORG> 4361.7SitojunURL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree 4371.1Sabs 4381.21Scjep$FreeBSD: src/share/misc/bsd-family-tree,v 1.73 2003/08/21 16:48:38 murray Exp $ 439