????HP-UX ??
????HP-UX?????? UNIX ??Hewlett-Packard’s UNIX??) ??? System V ?? 3 ?檔?????????????? PA-RISC HP 9000 ????HP-UX ?? 1 ?淢???? 1984 ??
????HP-UX ?? 9 ???????? SAM???????????????????????? (GUI)??????????????????????????? 1995 ??????? 10 ?棬???????????????????????????е????? AT&T SVR4??
?????? 11 ?淢???? 1997 ?????? HP ???????? 64 λ????汾???????? 2000 ?????·????? 11i????? HP ?????????????????????????????????operating environments??????????layered applications?????????饗bundled groups????
?????? 2001 ?????? 11.20 ?????????????Itanium??????HP-UX ????????? ACLs??????????б??Access Control Lists??????????????? UNIX ?????????????????????????????Logical Volume Manager??????????
???????HP-UX ??? HP ?? Veritas ????????????? Veritas ????????????
????HP-UX ?????°汾?? 11iv3?? update 4??
????Solaris ??
????Sun ?? UNIX ?汾?? Solaris?????????? 1992 ?????? SunOS??SunOS ???????? BSD??????????????а棨Berkeley Software Distribution???????? UNIX?????? SunOS 5.0 ?????????汾??????????°??? Solaris ?? Unix System V ?? 4 ?檔
????SunOS 1.0 ???? 1983 ????????????? Sun-1 ?? Sun-2 ????????? 1985 ?????? 2.0 ?檔?? 1987 ??Sun ?? AT&T ???????????????? SVR4 ??????? System V ?? BSD ?????????汾??
????Solaris 2.4 ?? Sun ?????????? Sparc/x86 ?汾??1994 ?? 11 ?·?????? SunOS 4.1.4 ?????????汾??Solaris 7 ?? 64 λ Ultra Sparc ?汾??????????????????????????????
????Solaris 9 ?????? 2002 ????? Linux ??????? Solaris ?????????Solaris Volume Manager???????2005 ?????? Solaris 10??????????￡???????? Solaris Containers???μ? ZFS ???????????????Logical Domains????
?????? Solaris ?μ?汾?? ?? 10 ?棬?????·????? 2008 ??
????Linux
???????? 1991 ?????????????????????????free??????????????????????????Linus Torvalds ?????????????????????????? Linux??Linux ???????Щ “C” ???????????????????????е??????Linux ??????? UNIX ??????????????
????2015 ????????? GNU Public License ??GPL??????? 3.18 ?檔IBM ?????г??? 1800 ???п????????????????
??????? GNU Public License ????ù??????????????????????????????????????????????????????????С?????????????????????????????
????UNIX vs. Linux?????????
????Linux ???????????Linux ?????????????????????и??????????????
????Linux ?? UNIX ???????????????
????UNIX ????汾????????????????????????????????????????
????Linux ?? UNIX ?и??????????????????????????????????????????Linux ?????? 60-100 ???????????????κ??????????????????棬UNIX ?????? 85-120 ??????????????????Щ????????С?
???????? UNIX ???????????????????????????????в???????? UNIX ?汾???????á?
??????Щ Linux ??????????????????????????????? Debian?????????????????????? Linux ???????棬???? SUSE ?? openSUSE ???????? Fedora??
??????? UNIX ???????????????????? Linux ??????????