Meta tags:

Headings (most frequently used words):

nukernel, contents, history, description, see, also, references,

Text of the page (most frequently used words):
the (37), #nukernel (18), mac (18), apple (14), was (13), and (11), system (10), operating (9), microkernel (9), #kernel (9), wikipedia (8), for (8), this (7), edit (7), with (6), from (6), systems (6), history (6), page (5), description (5), macintosh (5), copland (5), mach (5), 1996 (5), move (5), add (4), contents (4), search (4), using (4), time (4), next (4), one (4), that (4), top (4), hide (4), sidebar (4), view (3), developers (3), short (3), wikidata (3), microkernels (3), article (3), category (3), source (3), software (3), real (3), thomas (3), rtos (3), taligent (3), type (3), powerpc (3), classic (3), unix (3), minix (3), ios (3), other (3), xnu (3), lisa (3), saulpaugh (3), bruffey (3), bill (3), patent (3), also (3), its (3), basis (3), new (3), run (3), file (3), release (3), tools (3), main (3), languages (2), toggle (2), table (2), contact (2), about (2), privacy (2), policy (2), available (2), terms (2), you (2), inc (2), use (2), license (2), august (2), categories (2), stub (2), articles (2), related (2), help (2), information (2), based (2), discontinued (2), pink (2), amiga (2), psion (2), like (2), hosted (2), chorusos (2), javaos (2), java (2), virtual (2), machine (2), harmonyos (2), eros (2), nucleus (2), environment (2), mklinux (2), gnu (2), vanguard (2), nanokernel (2), ipod (2), others (2), projects (2), macos (2), sierra (2), lion (2), leopard (2), rhapsody (2), openstep (2), iii (2), williams (2), russell (2), computer (2), 1997 (2), user (2), tom (2), november (2), steve (2), jobs (2), references (2), computers (2), see (2), jeff (2), robbin (2), after (2), instead (2), hancock (2), they (2), would (2), allow (2), beos (2), delays (2), project (2), personalities (2), designed (2), version (2), english (2), personal (2), 1993 (2), appearance (2), upload (2), changes (2), links (2), read (2), log (2), create (2), account (2), donate (2), menu (2), topic, mobile, cookie, statement, statistics, code, conduct, legal, safety, contacts, disclaimers, text, under, additional, may, apply, site, agree, registered, trademark, non, profit, organization, wikimedia, foundation, creative, commons, attribution, sharealike, rendered, parsoid, last, edited, 2026, utc, hidden, all, different, matches, stubs, retrieved, https, org, index, php, title, oldid, 1371205413, can, adding, missing, open, italics, william, wulf, avie, tevanian, andrew, tanenbaum, richard, rashid, ike, nassi, james, mitchell, jochen, liedtke, gernot, heiser, per, brinch, hansen, dan, dodge, david, cheriton, bushnell, gordon, bell, genode, cosmos, kits, frameworks, vrtx, harmony, thoth, spin, sharpos, 4000, phantom, opencomrtos, mqx, helenos, freertos, chibios, bertos, amoeba, workplace, aim, alliance, verve, threadx, singularity, microsoft, morphos, icaros, desktop, broadway, aspireos, aros, amigaos, symbian, epoc, macmach, machten, integrates, chorus, jazz, wombat, rex, pikeos, linux, oniro, openharmony, nltss, midori, sel4, hydra, capros, keykos, gnosis, capability, riot, ose, nuttx, integrity, partial, vsta, unicos, tinix, spring, redoxos, qnx, os2000, mert, multi, vmd, meikos, lites, hurd, arx, support, posix, rtlinux, powerup, opus, off, plan, velosity, microempix, little, k42, warpos, quark, execsg, exec, eka2, eka1, eumel, family, kernels, nanokernels, list, newton, bridgeos, audioos, watchos, visionos, tvos, ipados, iphone, derivatives, cancelled, star, trek, shipped, poweropen, mae, aix, network, servers, rose, golden, gate, tahoe, sequoia, sonoma, ventura, monterey, big, sur, catalina, mojave, high, capitan, yosemite, mavericks, mountain, snow, tiger, panther, jaguar, puma, cheetah, core, darwin, public, beta, server, nextstep, macworks, sos, prodos, dos, object, oriented, message, passing, method, published, issued, assigned, 5590334, norr, henry, rocks, 124, 125, hormby, 2005, triumphant, return, 131, computerworld, joining, forces, mirho, charles, 1999, addison, wesley, 978, 201, 18393, isbn, inside, singh, amit, 2006, pearson, education, internals, line, power, external, reference, specification, ers, contained, entirety, technical, lead, leaders, itunes, purchased, urging, there, still, some, momentum, suggestion, apparently, offended, soon, demoted, research, development, into, position, eliminated, shortly, official, death, february, when, decision, made, forward, ellen, aftermath, failure, began, looking, options, initially, considered, future, idea, replace, leverage, their, previous, work, hosting, existing, having, port, them, older, native, apps, built, application, programming, interfaces, traces, lengthy, joint, develop, modern, could, various, which, referred, grew, authors, used, gave, started, writing, his, own, specifically, rather, than, multiple, hierarchical, ibm, not, developed, during, early, 1990s, written, scratch, concepts, extensive, additions, soft, scheduling, improve, multimedia, performance, only, released, alpha, succeeded, preceded, proprietary, gui, default, interface, supported, platforms, marketing, target, filing, final, years, ago, initial, closed, model, working, state, developer, free, encyclopedia, item, printable, download, pdf, print, export, switch, legacy, parser, get, shortened, url, cite, permanent, link, what, here, general, actions, talk, special, pages, recent, community, portal, learn, contribute, random, current, events, navigation, jump, content,

Text of the page (random words):
nukernel wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 history 2 description 3 see also 4 references toggle the table of contents nukernel add languages add links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia microkernel operating system nukernel developer jeff robbin thomas e saulpaugh bill m bruffey russell t williams working state discontinued source model closed source initial release 1993 33 years ago 1993 final release patent filing 1996 1996 marketing target personal computers available in english supported platforms powerpc kernel type microkernel default user interface gui license proprietary preceded by mach succeeded by xnu nukernel is a microkernel that was developed at apple computer during the early 1990s it was the basis for the copland operating system it was written from scratch and designed using concepts from the mach 3 0 microkernel with extensive additions for soft real time scheduling to improve multimedia performance 1 only one nukernel version was released with a copland alpha release apple s nukernel is not the microkernel in beos nukernel history edit nukernel traces its history to the lengthy delays in the taligent project a joint apple ibm to develop a new modern kernel that could run various operating systems on top which they referred to as personalities as delays in the project grew bill bruffey one of the authors of the hierarchical file system used in the classic mac os gave up on taligent and started writing his own microkernel designed specifically to run mac os on top rather than multiple personalities 2 in the aftermath of the failure of copland apple began looking for other options they initially considered using beos as the basis for a future mac operating system the idea was to replace be s kernel with nukernel and using be s application programming interfaces on top this would allow apple to leverage their previous work on hosting the existing mac os on nukernel instead of having to port that to be s kernel this would also allow them to run older mac software a java virtual machine and new powerpc native apps built on be 3 after apple purchased next instead of be at the urging of ellen hancock there was still some momentum to use nukernel as the basis for the new os this suggestion apparently offended steve jobs and hancock was soon demoted to research and development into a position that was eliminated shortly after 4 the official death of nukernel was on 3 february 1997 when the decision was made to move forward with the mach kernel from next 5 the one time technical lead for nukernel jeff robbin was one of the leaders of itunes and the ipod description edit the external reference specification ers for nukernel is contained in its entirety in its patent 6 see also edit xnu the microkernel in mac os x mac os nanokernel the microkernel in the line of power macintosh computers references edit singh amit 2006 mac os x internals pearson education p 4 saulpaugh tom mirho charles 1999 inside the javaos operating system addison wesley p xi isbn 978 0 201 18393 1 joining forces computerworld 11 november 1996 p 131 hormby tom 15 november 2005 next openstep and the triumphant return of steve jobs norr henry august 1997 rhapsody rocks mac developers mac user pp 124 125 us patent 5590334 saulpaugh thomas e bruffey bill m williams russell t object oriented message passing system and method published 1996 12 31 issued 1996 12 31 assigned to apple computer v t e operating systems by apple apple ii iii lisa apple ii apple dos prodos gs os apple iii sos lisa lisa os macworks mac classic mac os system 1 systems 2 3 and 4 system 5 system 6 system 7 mac os 8 mac os 9 macos history nextstep openstep rhapsody mac os x server 1 0 public beta core darwin xnu mac os x 10 0 cheetah 10 1 puma 10 2 jaguar 10 3 panther 10 4 tiger 10 5 leopard 10 6 snow leopard 10 7 lion os x 10 8 mountain lion 10 9 mavericks 10 10 yosemite 10 11 el capitan macos 10 12 sierra 10 13 high sierra 10 14 mojave 10 15 catalina 11 big sur 12 monterey 13 ventura 14 sonoma 15 sequoia 26 tahoe 27 golden gate other projects shipped a rose a ux aix for apple network servers mae mklinux poweropen environment cancelled star trek pink copland nukernel vanguard ios derivatives ios iphone os 1 2 3 ios 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 26 27 ipados 13 14 15 16 17 18 26 27 others tvos visionos watchos audioos bridgeos others newton os ipod software list category v t e microkernels nanokernels kernels l4 family eumel l3 l4 macintosh hosted mac os nanokernel nukernel psion eka1 eka2 amiga type exec execsg quark warpos eros k42 little kernel mach gnu mach microempix µ velosity nucleus off plan b opus powerup rtlinux ti rtos kernel vanguard operating systems posix support unix like arx gnu hurd lites meikos minix minix vmd minix 3 mklinux multi environment real time mert unix rt os2000 qnx redoxos spring tinix unicos vsta partial chorusos integrity nucleus rtos nuttx ose riot capability based gnosis keykos eros capros hydra sel4 midori nltss harmonyos next openharmony oniro os harmonyos l4 kernel l 4 linux pikeos rex os wombat java virtual machine javaos chorus jazz integrates chorusos jx macintosh hosted unix like machten macmach copland classic mac os powerpc kernel psion epoc symbian os amiga type amigaos aros aspireos broadway icaros desktop morphos microsoft singularity threadx verve aim alliance pink taligent os workplace os amoeba bertos chibios rt freertos helenos µc os mqx opencomrtos phantom os rc 4000 sharpos spin thoth harmony v vrtx frameworks kits cosmos genode ti rtos developers gordon bell thomas bushnell david cheriton dan dodge per brinch hansen gernot heiser jochen liedtke james g mitchell ike nassi richard rashid andrew s tanenbaum avie tevanian william wulf italics discontinued real time open source software category microkernel based operating systems category microkernels this macintosh related article is a stub you can help wikipedia by adding missing information v t e retrieved from https en wikipedia org w index php title nukernel oldid 1371205413 categories apple inc operating systems microkernels macintosh stubs hidden categories articles with short description short description matches wikidata short description is different from wikidata all stub articles this page was last edited on 25 august 2026 at 04 54 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit organization privacy policy about wikipedia disclaimers contact wikipedia legal safety contacts code of conduct developers statistics cookie statement mobile view search search toggle the table of contents nukernel add languages add topic