英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

MULTICS    
MULTICS操作系统

MULTICS操作系统

/muhl'tiks/ MULTiplexed Information and
Computing Service. A {time-sharing} {operating system}
co-designed by a consortium including {MIT}, {GE} and {Bell
Laboratories} as a successor to MIT's {CTSS}. The system
design was presented in a special session of the 1965 Fall
Joint Computer Conference and was planned to be operational in
two years. It was finally made available in 1969, and took
several more years to achieve respectable performance and
stability.

Multics was very innovative for its time - among other things,
it was the first major OS to run on a {symmetric
multiprocessor}; provided a {hierarchical file system} with
{access control} on individual files; mapped files into a
paged, segmented {virtual memory}; was written in a
{high-level language} ({PL/I}); and provided dynamic
inter-procedure linkage and memory (file) sharing as the
default mode of operation. Multics was the only
general-purpose system to be awarded a B2 {security rating} by
the {NSA}.

Bell Labs left the development effort in 1969. {Honeywell}
commercialised Multics in 1972 after buying out GE's computer
group, but it was never very successful: at its peak in the
1980s, there were between 75 and 100 Multics sites, each a
multi-million dollar {mainframe}.

One of the former Multics developers from Bell Labs was {Ken
Thompson}, a circumstance which led directly to the birth of
{Unix}. For this and other reasons, aspects of the Multics
design remain a topic of occasional debate among hackers. See
also {brain-damaged} and {GCOS}.

MIT ended its development association with Multics in 1977.
Honeywell sold its computer business to {Bull} in the mid
1980s, and development on Multics was stopped in 1988 when
Bull scrapped a Boston proposal to port Multics to a
{platform} derived from the {DPS-6}.

A few Multics sites are still in use as late as 1996.

The last Multics system running, the Canadian Department of
National Defence Multics site in Halifax, Nova Scotia, Canada,
shut down on 2000-10-30 at 17:08 UTC.

The {Jargon file} 3.0.0 claims that on some versions of
Multics one was required to enter a password to log out but
James J. Lippard , who was a Multics
developer in Phoenix, believes this to be an {urban legend}.
He never heard of a version of Multics which required a
password to logout. Tom Van Vleck
agrees. He suggests that some user may have implemented a
'terminal locking' program that required a password before one
could type anything, including logout.

{(http://multicians.org/)}.

{Usenet} newsgroup: {news:alt.os.multics}.

[{Jargon File}]

(2002-04-12)

MULTiplexed Information and Computing Service (OS, MIT, Bell)

Multics: /muhl´tiks/, n. [fromMULTiplexed Information and Computing Service”]
An early timesharing operating system co-designed
by a consortium including MIT, GE, and Bell Laboratories as a successor to
CTSS. The design was first presented in 1965,
planned for operation in 1967, first operational in 1969, and took several
more years to achieve respectable performance and stability.Multics was very innovative for its timeamong other things,
it provided a hierarchical file system with access control on individual
files and introduced the idea of treating all devices uniformly as special
files. It was also the first OS to run on a symmetric multiprocessor, and
the only general-purpose system to be awarded a B2 security rating by the
NSA (see Orange Book).Bell Labs left the development effort in 1969 after judging that
second-system effect had bloated Multics to the
point of practical unusability. Honeywell commercialized Multics in 1972
after buying out GE's computer group, but it was never very successful: at
its peak in the 1980s, there were between 75 and 100 Multics sites, each a
multi-million dollar mainframe.One of the former Multics developers from Bell Labs was Ken Thompson,
and Unix deliberately carried through and extended
many of Multics' design ideas; indeed, Thompson described the very name
Unixasa weak pun on Multics”. For this and
other reasons, aspects of the Multics design remain a topic of occasional
debate among hackers. See also brain-damaged and
GCOS.MIT ended its development association with Multics in 1977.
Honeywell sold its computer business to Bull in the mid 80s, and
development on Multics was stopped in 1988. Four Multics sites were known
to be still in use as late as 1998, but the last one (a Canadian military
site) was decommissioned in November 2000. There is a Multics page at
http://www.stratus.com/pub/vos/multics/tvv/multics.html.


请选择你想看的字典辞典:
单词字典翻译
multics查看 multics 在百度字典中的解释百度英翻中〔查看〕
multics查看 multics 在Google字典中的解释Google英翻中〔查看〕
multics查看 multics 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Quote of the day? : r MicrosoftRewards - Reddit
    This is Bing's Quote of the Day on Feb 15: A house divided against itself cannot stand Abraham Lincoln 16th president of the United States Pretty sure someone else said it first, Bing
  • Daily Check-In — Whats the most you got on Day 7? - Reddit
    When I open the Bing App (on Android - US) and go to the Rewards page, there's that Daily Check in section at the top I think it was 5pts the first two days, then 10pts the next two, then 20pts for days five and six, and finally the big seventh day which has been 50pts and 60pts for me so far
  • Search Box no longer displaying a daily image : r WindowsHelp
    I like Windows 11's Search Box and its image on the right side, but since I ran PC Manager, this little feature seems to be broken and now only a Bing's "B" is displayed It has been like this for 2 days I attempted only restarting Windows Explorer process, but it didn't bring the daily image back
  • For those who had the 15-min search cooldown on points but dont . . .
    You're absolutely right I didn't mind using Bing to search when there was no cooldown They can know about me in exchange for store credit gift cards Google already does and I don't get any points from them for it But with the cooldown, it's extremely inconvenient to use them to search now
  • I’ve been collecting the Bing Word of the Day for an entire . . . - Reddit
    On the day that I posted this, 5-28-2023, it would have been an entire year since I started collecting the daily word that Bing offers every day For those of you don’t know, if you search for “Word of the day” on Bing, you will find a unique vocabulary word that is specific to each day That’s what I’ve been documenting for the past
  • Todays Bing Quote of The Day : r scienceisdope - Reddit
    20K subscribers in the scienceisdope community 𝗦𝗰𝗶𝗲𝗻𝗰𝗲, 𝗿𝗮𝘁𝗶𝗼𝗻𝗮𝗹𝗶𝘁𝘆 𝗮𝗻𝗱 𝗺𝗲𝗺𝗲𝘀! The
  • 10 11 23 : r BingQuoteOfTheDay - Reddit
    The Real Housewives of AtlantaThe BachelorSister Wives90 Day FianceWife SwapThe Amazing Race AustraliaMarried at First SightThe Real Housewives of DallasMy 600-lb LifeLast Week Tonight with John Oliver
  • all windows search highlights from february 14 2023 does anyone . . .
    all windows search highlights from february 14 2023 does anyone remember the quote of the day the word of the day and on this day from february 14 2023 and the search stuff from below the big image of the valentines day i accidently deleted my microsoft bing browser history before i could bookmark Locked post New comments cannot be posted





中文字典-英文字典  2005-2009