Assorted OS-tan / computer-tan sillies. A lot of these come from convos & jokes with friends. (IDs in alt text)
#os-tan #gijinka #computeroc
#os-tan #gijinka #computeroc
October 2, 2025 at 4:21 PM
Assorted OS-tan / computer-tan sillies. A lot of these come from convos & jokes with friends. (IDs in alt text)
#os-tan #gijinka #computeroc
#os-tan #gijinka #computeroc
resisting the urge to tell u that is the unix pun it's like multics but uni its like castrated multics
September 15, 2025 at 5:31 AM
resisting the urge to tell u that is the unix pun it's like multics but uni its like castrated multics
"Flag day" dates to a change to ASCII on MULTICS on Flag Day, 1966 (<a href="http://bit.ly/ehz2z8);" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">http://bit.ly/ehz2z8); any one is surprising, but all three? #coldcock
Bitly | Page Not Found | 404
bit.ly
November 3, 2024 at 10:23 AM
"Flag day" dates to a change to ASCII on MULTICS on Flag Day, 1966 (<a href="http://bit.ly/ehz2z8);" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">http://bit.ly/ehz2z8); any one is surprising, but all three? #coldcock
Honestly, I’m even willing to accept as far back as Multics, or even the Dartmouth Time-Sharing system. Just.. where the HECK does NT fit into this currently Unix-dominated world? Is it just some survivor from the much more varied past? A weird distant step-cousin? WHAT IS IT??
August 26, 2025 at 6:16 PM
Honestly, I’m even willing to accept as far back as Multics, or even the Dartmouth Time-Sharing system. Just.. where the HECK does NT fit into this currently Unix-dominated world? Is it just some survivor from the much more varied past? A weird distant step-cousin? WHAT IS IT??
Multics: "and I took that personally"
April 5, 2024 at 2:05 PM
Multics: "and I took that personally"
One of the goals of multics seems to be indirectly providing an environment suitable for building highly modular software. That being said I don’t exactly know how they solved the DLL problem, and to be fair I think the answer is they didn’t
October 23, 2024 at 1:59 PM
One of the goals of multics seems to be indirectly providing an environment suitable for building highly modular software. That being said I don’t exactly know how they solved the DLL problem, and to be fair I think the answer is they didn’t
Neumann worked on Multics via Bell Labs, way before my time, which was in the Honeywell era.
November 21, 2024 at 7:16 PM
Neumann worked on Multics via Bell Labs, way before my time, which was in the Honeywell era.
That's one of the most modern systems on here.
The usual list is: 211bsd, v7 Unix, RSX-11M+, Multics MR12.8, TOPS-20, TOPS-10, ITS, 4.3bsd, OpenVMS 7.3, VM/370r6. So 10 rather than 11.
211bsd is basically modern; most of 43bsd but still runs on a split I/D PDP-11.
The usual list is: 211bsd, v7 Unix, RSX-11M+, Multics MR12.8, TOPS-20, TOPS-10, ITS, 4.3bsd, OpenVMS 7.3, VM/370r6. So 10 rather than 11.
211bsd is basically modern; most of 43bsd but still runs on a split I/D PDP-11.
December 1, 2024 at 5:58 PM
That's one of the most modern systems on here.
The usual list is: 211bsd, v7 Unix, RSX-11M+, Multics MR12.8, TOPS-20, TOPS-10, ITS, 4.3bsd, OpenVMS 7.3, VM/370r6. So 10 rather than 11.
211bsd is basically modern; most of 43bsd but still runs on a split I/D PDP-11.
The usual list is: 211bsd, v7 Unix, RSX-11M+, Multics MR12.8, TOPS-20, TOPS-10, ITS, 4.3bsd, OpenVMS 7.3, VM/370r6. So 10 rather than 11.
211bsd is basically modern; most of 43bsd but still runs on a split I/D PDP-11.
@ephemeromorph except that Unix is not actually an acronym.
Unix was simply named as a pun on Multics which was a common OS for the PDP 10 at the time.
It never stood for anything, it was just wordplay.
Unix was simply named as a pun on Multics which was a common OS for the PDP 10 at the time.
It never stood for anything, it was just wordplay.
September 1, 2025 at 3:46 PM
@ephemeromorph except that Unix is not actually an acronym.
Unix was simply named as a pun on Multics which was a common OS for the PDP 10 at the time.
It never stood for anything, it was just wordplay.
Unix was simply named as a pun on Multics which was a common OS for the PDP 10 at the time.
It never stood for anything, it was just wordplay.
単一レベル記憶といえばMulticsがそうじゃなかったっけ…。もちろんUnixには引き継がれませんでしたが。
November 5, 2025 at 1:40 PM
単一レベル記憶といえばMulticsがそうじゃなかったっけ…。もちろんUnixには引き継がれませんでしたが。
idk why but i thought of en.wikipedia.org/wiki/Multics
Multics - Wikipedia
en.wikipedia.org
October 8, 2025 at 7:52 AM
idk why but i thought of en.wikipedia.org/wiki/Multics
Before UNIX there was Multics. Multics spent a lot of time on error detection and recovery, and was slow and complex as a result.
UNIX just panics and stops when things go wrong. At least it reboots quickly!
UNIX just panics and stops when things go wrong. At least it reboots quickly!
Pokemon Clefairy GIF
ALT: Pokemon Clefairy GIF
media.tenor.com
July 13, 2024 at 12:10 AM
Before UNIX there was Multics. Multics spent a lot of time on error detection and recovery, and was slow and complex as a result.
UNIX just panics and stops when things go wrong. At least it reboots quickly!
UNIX just panics and stops when things go wrong. At least it reboots quickly!
every OS is just CP/M or Multics
October 20, 2024 at 11:50 PM
every OS is just CP/M or Multics
@aka_pugs
Quite a library, I'd love to read some of those books. I'd add...
Computer Engineering: A DEC View of Hardware Systems Design (Oh I love that book... full PDFs available online)
The Multics System: An Examination of Its Structure
Colossus: The secrets of Bletchley Park's […]
Quite a library, I'd love to read some of those books. I'd add...
Computer Engineering: A DEC View of Hardware Systems Design (Oh I love that book... full PDFs available online)
The Multics System: An Examination of Its Structure
Colossus: The secrets of Bletchley Park's […]
Original post on hachyderm.io
hachyderm.io
June 2, 2025 at 7:55 AM
@aka_pugs
Quite a library, I'd love to read some of those books. I'd add...
Computer Engineering: A DEC View of Hardware Systems Design (Oh I love that book... full PDFs available online)
The Multics System: An Examination of Its Structure
Colossus: The secrets of Bletchley Park's […]
Quite a library, I'd love to read some of those books. I'd add...
Computer Engineering: A DEC View of Hardware Systems Design (Oh I love that book... full PDFs available online)
The Multics System: An Examination of Its Structure
Colossus: The secrets of Bletchley Park's […]
📰 Multics
💬 Multics nostalgia mixed with disdain; it's a mixed bag of historical homage and existential dread. 😟
https://news.ycombinator.com/item?id=44814596
💬 Multics nostalgia mixed with disdain; it's a mixed bag of historical homage and existential dread. 😟
https://news.ycombinator.com/item?id=44814596
August 6, 2025 at 8:00 PM
📰 Multics
💬 Multics nostalgia mixed with disdain; it's a mixed bag of historical homage and existential dread. 😟
https://news.ycombinator.com/item?id=44814596
💬 Multics nostalgia mixed with disdain; it's a mixed bag of historical homage and existential dread. 😟
https://news.ycombinator.com/item?id=44814596
BSD vs SysVの時代にUNIXがおかしくなったのは、Multicsを知らない子供たちがやってたからではないか説。
ベル研時代のUNIXは、Multicsを知ってる子供たちだけで作っていたので、UNIXの成長に応じて、Multicsから大ネタ（思想・アイデア）を持ってこられた。
しかしMulticsと切れてから10年以上が過ぎて、Multicsを知らない子供たちが設計をやるようになると、「シェアードライブラリが先だろ（Multicsにはシェアードライブラリがあった）」という判断ができなくなったのでは。
ベル研時代のUNIXは、Multicsを知ってる子供たちだけで作っていたので、UNIXの成長に応じて、Multicsから大ネタ（思想・アイデア）を持ってこられた。
しかしMulticsと切れてから10年以上が過ぎて、Multicsを知らない子供たちが設計をやるようになると、「シェアードライブラリが先だろ（Multicsにはシェアードライブラリがあった）」という判断ができなくなったのでは。
October 7, 2025 at 6:29 AM
BSD vs SysVの時代にUNIXがおかしくなったのは、Multicsを知らない子供たちがやってたからではないか説。
ベル研時代のUNIXは、Multicsを知ってる子供たちだけで作っていたので、UNIXの成長に応じて、Multicsから大ネタ（思想・アイデア）を持ってこられた。
しかしMulticsと切れてから10年以上が過ぎて、Multicsを知らない子供たちが設計をやるようになると、「シェアードライブラリが先だろ（Multicsにはシェアードライブラリがあった）」という判断ができなくなったのでは。
ベル研時代のUNIXは、Multicsを知ってる子供たちだけで作っていたので、UNIXの成長に応じて、Multicsから大ネタ（思想・アイデア）を持ってこられた。
しかしMulticsと切れてから10年以上が過ぎて、Multicsを知らない子供たちが設計をやるようになると、「シェアードライブラリが先だろ（Multicsにはシェアードライブラリがあった）」という判断ができなくなったのでは。
May 11, 2024 at 1:50 PM
OSのアイデアの8割はMulticsとSystem/360を経由してる気がする。同時代からではなく回顧的にMulticsとSystem/360を書いた本はないものか。日本語で。
December 24, 2024 at 1:03 PM
OSのアイデアの8割はMulticsとSystem/360を経由してる気がする。同時代からではなく回顧的にMulticsとSystem/360を書いた本はないものか。日本語で。
god Multics is so terrible i love it
December 15, 2024 at 6:25 AM
god Multics is so terrible i love it
interrupt handlerがユーザモードだとコンテキストスイッチどうなん？ と思うけど、Multicsではカーネルモードへの切り替えが同期例外とかではなくセグメント（ページの集合）間のジャンプなので、レジスタの退避が発生しない？
いやホント、ページにNXビットだの書き込み禁止だのの機能がつくのなら、ページでCPUモードも指定すりゃええねん、って思ってたけど、Multicsはそれに近いらしい。
いやホント、ページにNXビットだの書き込み禁止だのの機能がつくのなら、ページでCPUモードも指定すりゃええねん、って思ってたけど、Multicsはそれに近いらしい。
December 24, 2024 at 11:59 PM
interrupt handlerがユーザモードだとコンテキストスイッチどうなん？ と思うけど、Multicsではカーネルモードへの切り替えが同期例外とかではなくセグメント（ページの集合）間のジャンプなので、レジスタの退避が発生しない？
いやホント、ページにNXビットだの書き込み禁止だのの機能がつくのなら、ページでCPUモードも指定すりゃええねん、って思ってたけど、Multicsはそれに近いらしい。
いやホント、ページにNXビットだの書き込み禁止だのの機能がつくのなら、ページでCPUモードも指定すりゃええねん、って思ってたけど、Multicsはそれに近いらしい。
thinking about multics PL/I again: the formal semantics don’t contain the concept storage unit in reference to temporary values. HOWEVER the language reference *does*, so treating the language as if values that exit a statement cannot propagate UB seem OK
November 12, 2024 at 3:33 PM
thinking about multics PL/I again: the formal semantics don’t contain the concept storage unit in reference to temporary values. HOWEVER the language reference *does*, so treating the language as if values that exit a statement cannot propagate UB seem OK
Back in 1972, the Multics system review highlighted potential security flaws like backdoors. Fast forward to 2024, and similar threats persist with incidents like the xz attack on Debian's ssh daemon.
April 8, 2025 at 8:20 AM
Back in 1972, the Multics system review highlighted potential security flaws like backdoors. Fast forward to 2024, and similar threats persist with incidents like the xz attack on Debian's ssh daemon.
#til (or maybe, re-learned?) that Multics not only is still an active project, but can be installed and run (via emulator) on probably the machine you're using to read this.
yes, that Multics. That started in 1964, and "has influenced all modern operating systems since, from microcomputers to […]
yes, that Multics. That started in 1964, and "has influenced all modern operating systems since, from microcomputers to […]
Original post on infosec.exchange
infosec.exchange
September 25, 2025 at 4:07 AM
#til (or maybe, re-learned?) that Multics not only is still an active project, but can be installed and run (via emulator) on probably the machine you're using to read this.
yes, that Multics. That started in 1964, and "has influenced all modern operating systems since, from microcomputers to […]
yes, that Multics. That started in 1964, and "has influenced all modern operating systems since, from microcomputers to […]