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6464 discussions

Re: mental architecture models, Anyone ever heard of teaching a case study of Initial Unix?

by jnc＠mercury.lcs.mit.edu

> From: Steve Jenkin > C wasn't the first standardised coding language, FORTRAN & COBOL at > least were before it There were a ton; Algol-60 is the most imppotant one I can think of. (I was thinking that Algol-60 was probably an important precursor to BCPL, which was the predecessor to C, but Richards' first BCPL paper: https://dl.acm.org/doi/10.1145/1476793.1476880 "BCPL: A tool for compiler writing and system programming" doesn't call it out, only CPL. However, CPL does admit its dues to Algol-60: "CPL is to a large extent based on ALGOL 60".) Noel

9 months

3B21D

by Kevin Bowling

Howdy, I now have this pictured 3B21D in my facility http://kev009.com/wp/2024/07/Lucent-5ESS-Rescue/ It will be a moment before I can start work on documentation of the 3B21D and DMERT/UNIX-RTR but wanted to share the news. Regards, Kevin

9 months

Any Surviving LIL Compilers/Code Artifacts?

by segaloco

So I'm doing a little bit of the footwork in prep for analyzing manual differences between Research, Program Generic, and PWB/UNIX, and found something interesting. The LIL Programming Language[1] was briefly available as a user-supported section 6 command on Fifth Edition (1974) UNIX, appearing as a page but not even making it into the TOC. It was gone as quickly as it appeared in the Research stream, not surviving into V6. However, with Al Kossow's provided Program Generic Issue 2 (1976) manual[2] as well as notes in the MERT Issue 0 (1977) manual [3], it appears that LIL was quite supported in the USG Program Generic line, making it into section 1 of Issue 2 and staying there through to Issue 3. lc(1) happens to be one of the pages excised in the transformation from PG Issue 3 to MERT Issue 0. This had me curious, so I went looking around the extant V5 sources and couldn't find anything resembling the LIL compiler. Does anyone know if this has survived in any other fashion? Additionally, does anyone have any recollection of whether LIL was in significant use in USG-supported UNIX sites, or if it somehow made it into section 1 and spread around due to the state of use in Research at the time USG sampled userland out. Finally, one little tidbit from P.J. Plauger's paper[1] stuck out to me: "...the resulting language was used to help write a small PDP-11/10 operating system at Bell Labs." Does anyone have any information about this operating system, whether it was a LIL experiment or something purpose-driven and used in its own right after creation? [1] - http://www.ultimate.com/phil/lil/ [2] - http://bitsavers.org/pdf/att/unix/6th_Edition/UNIX_Programmers_Manual_19760… [3] - https://www.tuhs.org/Archive/Documentation/Manuals/MERT_Release_0/Pgs%2001-…'s%20Manual%20for%20MERT.pdf

9 months

Re: Anyone ever heard of teaching a case study of Initial Unix?

by Douglas McIlroy

> Peter J Denning in 2008 wrote about reforming CACM in 1982/83. [ extract at end ] > <https://cacm.acm.org/opinion/dja-vu-all-over-again/> That "accomplishment" drove me away from the ACM. I hope the following explanation does not set off yet another long tangential discussion. The CACM had been the prime benefit of ACM membership. It carried generally accessible technical content across the whole spectrum of computing. The "Journal for all Members" (JAM) reform resulted in such content being thinly spread over several journals. To get the perspective that CACM had offered, one would have had to subscribe to and winnow a mountain of specialst literature--assuming the editors of these journals would accept some ACM-style articles. I had been an active member of ACM, having serving as associate editor of three journals, member of the publications planning committee, national lecturer, and Turing-Award chairman. When the JAM reform cut off my window into the field at large, I quit the whole organization. With the advent of WWW, the ACM Digital Library overcame the need to subscribe to multiple journals for wide coverage. Fortunately I had institutional acess to that. I rejoined ACM only after its decision to allow free access to all 20th century content in the DL. This public-spirited action more than atoned for the damage of the JAM reform and warranted my support. I have been happy to find that the current CACM carries one important technical article in each issue and a couple of interesting columnists among the generally insipid JAM content. And I am pleased by the news that ACM will soon also give open access to most 21st-century content. Doug

9 months

Re: Anyone ever heard of teaching a case study of Initial Unix?

by Steve Jenkin

Found these two. Anyone seen others? I bought this book soon after it was published. It’s a detailed study of some major IT projects, doesn’t draw “lessons” & rules like I’d expect of an MBA Case Study. Why information systems fail: a case study approach February 1993 <https://dl.acm.org/doi/book/10.5555/174553> > On 5 Jul 2024, at 09:31, Lawrence Stewart <stewart(a)serissa.com> wrote: > > A quick search also shows a number of software engineering case study books. ================ Case Study Research in Software Engineering: Guidelines and Examples April 2012 <https://dl.acm.org/doi/book/10.5555/2361717> Based on their own experiences of in-depth case studies of software projects in international corporations, in this bookthe authors present detailed practical guidelines on the preparation, conduct, design and reporting of case studies of software engineering. This is the first software engineering specific book on thecase study research method. ================ Case studies for software engineers May 2006 <https://dl.acm.org/doi/10.1145/1134285.1134497> The topic of this full-day tutorial was the correct use and interpretation of case studies as an empirical research method. Using an equal blend of lecture and discussion, it gave attendees a foundation for conducting, reviewing, and reading case studies. There were lessons for software engineers as researchers who conduct and report case studies, reviewers who evaluate papers, and practitioners who are attempting to apply results from papers. The main resource for the course was the book Case Study Research: Design and Methods by Robert K. Yin. This text was supplemented with positive and negative examples from the literature. ================ -- Steve Jenkin, IT Systems and Design 0412 786 915 (+61 412 786 915) PO Box 38, Kippax ACT 2615, AUSTRALIA mailto:sjenkin@canb.auug.org.au http://members.tip.net.au/~sjenkin

9 months

Re: Anyone ever heard of teaching a case study of Initial Unix?

by Steve Jenkin

Links for those who’ve not read these articles. Open access, downloadable PDF’s. ================ Peter J Denning in 2008 wrote about reforming CACM in 1982/83. [ extract at end ] <https://cacm.acm.org/opinion/dja-vu-all-over-again/> The space shuttle primary computer system Sept 1984 <https://dl.acm.org/doi/10.1145/358234.358246> The TWA reservation system July 1984 <https://dl.acm.org/doi/abs/10.1145/358105.358192> ================ After Editor in Chief of the ACM, in 1993 Denning established "The Center for the New Engineer" (CNE) <http://www.denninginstitute.com/cne/cne-aug93.pdf> Great Principles of Computing, paper <https://denninginstitute.com/pjd/PUBS/ENC/gp08.pdf> Website <https://denninginstitute.com/pjd/GP/GP-site/welcome.html> ================ Denning, 2008 Another major success was the case studies conducted by Alfred Spector and David Gifford of MIT, who visited project managers and engineers at major companies and interviewed them about their projects, producing no-holds-barred pieces. This section was wildly popular among the readers. Unfortunately, the labor-intensive demands of the post got the best of them after three years, and we were not able to replace them. Also by that time, companies were getting more circumspect about discussing failures and lessons learned in public forums. ================ > On 5 Jul 2024, at 09:31, Lawrence Stewart <stewart(a)serissa.com> wrote: > > Alright, apologies for being late. > > Back in 1984, David Gifford and Al Spector started a series of case studies for CACM. > I think only two were published, on the TWA reservation system and on the Space Shuttle primary computer. -- Steve Jenkin, IT Systems and Design 0412 786 915 (+61 412 786 915) PO Box 38, Kippax ACT 2615, AUSTRALIA mailto:sjenkin@canb.auug.org.au http://members.tip.net.au/~sjenkin

9 months

Lions book reprint by Bell Labs

by Tom Lyon

The fabulous Dr. Honeyman made a gift to me of his Lions' books which were printed by Bell Labs. Does anyone know WHEN that happened or WHO made it happen? I figure it must have been at least 1 year and maybe 2 after Lions' originals. See Images: https://drive.google.com/file/d/1BIs3Qsihp6nI2iX1Ax3fNU-OFv5dfy0O/view?usp=… https://drive.google.com/file/d/1LoQUl8ND7D18z1W5I3NF-QwIvDkfXk0t/view?usp=… https://drive.google.com/file/d/1xg4TAJNAp5h8FljulJh9Zh0nzFy-YWda/view?usp=… https://drive.google.com/file/d/1u--blfYu5Iuzpc-qiwCGNq0p6u1DgucR/view?usp=… ps. *I* have no problem spelling Lions' name. A problem *with* the spelling, perhaps.

9 months

seismo/uunet uucp

by Lyndon Nerenberg (VE7TFX/VE6BBM)

Does the source to the Rick Adams version of UUCP still exist anywhere? --lyndon

9 months

Anyone ever heard of teaching a case study of Initial Unix?

by norman＠oclsc.org

Steve Jenkin: I've never heard of a Computer Science or Software Engineering program that included a `case study' component, especially for Software Development & Projects. [...] Creating Unix V6, because it profoundly changed computing & development, would seem an obvious Case Study for many aspects of Software, Coding and Projects. ==== How about the course for which John Lions wrote his famous exegesis of the 6/e kernel? Norman Wilson Toronto ON

9 months

"X Window System At 40"

by Alexis

David Rosenthal reflects on his involvement with the development of the X Window System: > Although most of my time was spent developing NeWS, I rapidly > ported X version 10 to the Sun/1, likely the second port to > non-DEC hardware. It worked, but I had to kludge several areas > that depended on DEC-specific hardware. The worst was the > completely DEC-specific keyboard support. > > Because it was clear that a major redesign of X was needed to > make it portable and in particular to make it work well on Sun > hardware, Gosling and I worked with the teams at DEC SRC and WRL > on the design of X version 11. Gosling provided significant > input on the imaging model, and I designed the keyboard > support. As the implementation evolved I maintained the Sun port > and did a lot of testing and bug fixing. All of which led to my > trip to Boston to pull all-nighters at MIT finalizing the > release. > > My involvement continued after the first release. I was the > editor and main author of the X Inter-Client Communications > Conventions Manual (ICCCM) that forms Part III of Robert > Scheifler and Jim Gettys' X Window System. -- https://blog.dshr.org/2024/07/x-window-system-at-40.html Alexis.

9 months

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