Announcement

Collapse

Forum Rules and Etiquette

Our mission ...

This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.


Rule 1: Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.


Rule 2: Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.



Rule 3: Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.


Rule 4: "PM Sent!" messages (or, how to use the Private Message system)

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.


Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Rule 5: Copyright and other legal issues

We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.


Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

If you are unsure you may consider sending a private message to a moderator instead.


New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.


Other suggestions
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
  • Spelling and grammar are not rated, but they do make a post easier to read.
See more
See less

Digital Equipment Corporation - MicroFiche Underground

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Originally posted by Joerg Hoppe View Post
    Milestone, the 1000ths DEC PDP-11 Diagnostic Program Listing was scanned.
    Up to now we have 1017 new listings on 1273 fiches with a total of 146910 pages, raw data size is 680GB.
    ... continuing ...
    Are you looking for mirror sites? I'm in New York, US with a gigabit internet connection.

    Comment


      Originally posted by Terry Kennedy View Post
      Are you looking for mirror sites? I'm in New York, US with a gigabit internet connection.
      Thanks for the offer!
      Will come back to you when size of final PDFs has settled and we have a quote from Al@bitsavers.

      Joerg

      Comment


        Hi,

        I completed most of the PDP-11 Dignostic Program Listing fiches now:
        1366 documents, 1700 fiches, 194584 listing pages. Whoa!

        Now PDFs must be made.
        After some try-and-error, and for max bitsavers-compatibility,
        I'd like to use Erik Smith's "tumble" http://tumble.brouhaha.com/
        as it apparently can compress TIFFs very well.
        Is there a MS-Windows .exe?

        Thanks,
        Joerg

        Comment


          Originally posted by Joerg Hoppe View Post
          I'd like to use Erik Smith's "tumble" http://tumble.brouhaha.com/
          as it apparently can compress TIFFs very well.
          There is none that I know of, and it is fairly challenging to build with the patches and finding the right libraries.
          Also, it only supports bitonal TIFFs. It has its own G4 compressor, I should see if anyone ever migrated it to use libtiff.

          Comment


            Al,
            Originally posted by Al Kossow View Post

            There is none that I know of, and it is fairly challenging to build with the patches and finding the right libraries.
            Also, it only supports bitonal TIFFs. It has its own G4 compressor, I should see if anyone ever migrated it to use libtiff.
            Thanks for reply.

            After your post and a look into https://github.com/brouhaha/tumble I found it easier to reinvent the wheel.

            Enhancing an own PDF-Maker was surprisingly easy, the commercial https://www.imageen.com/ components do all the heavy stuff now.

            Joerg

            Comment


              Hi Friends,

              proofreading is done, the scans are online now:
              http://files.retrocmp.com/fichescann...gram_Listings/

              You can insert this into your bitsaver mirror tree with
              $ cd <your-bitsavers-mirror-root>
              $ wget --recursive --level 0 --no-host-directories --cut-dirs 2 --no-parent -R index.htm?* http://files.retrocmp.com/fichescanner/bitsavers/
              You need about 130 GB space for 1600+ listings.
              A Win10 version of wget is at http://files.retrocmp.com/wget-1.21.2-win32.zip

              In 2016 I posted a batch of listings, which was archived at
              http://www.bitsavers.org/pdf/dec/pdp...tp.j-hoppe.de/...
              These were repacked and included in the above distribution.
              So despite I'm very pleased to see my name on bitsavers:
              Please discard the "ftp.j-hoppe.de" directory now !

              For each listing there are 3 files:
              - a "gray" pdf in archive quality.
              - a highly compressed "bw" pdf, about 10x smaller.
              - an ASCII *.dat with context and title strip data, prepared for database import.
              The pdfs contain pictures of their fiches as title pages.

              The quality of the fiches is everything between "brilliant" and "awful"
              DEC made every possible error while preparating them, the list is endless.
              My favorite bug: Title strips glued to the wrong fiche (corrected here).

              I even tried OCR but the results where poor.
              "ocrmypdf" (= "tesseract + pdf") seems a good tool, but
              the fiches are too problematic for a fully automatic run.
              You have to dive into tesseracts training procedures.
              See https://hub.docker.com/r/jbarlow83/ocrmypdf/

              Some project links:
              http://www.retrocmp.com/projects/scanning-micro-fiches
              https://youtu.be/X22gr5THBRA
              https://hackaday.com/2021/09/17/auto...igitizes-docs/

              By the way: This project ate up lots of (physical and personal) resources.
              I'll will scan other document sets in the future, maybe begging for a donation then.

              Enjoy!
              Joerg

              Comment


                Something strange with

                MD-11-DVQAA-D__LSI11__SUITCASE__EP-DVQAA-D-DL-A__OCT_1976_bw.pdf
                MD-11-DVQAA-D__LSI11__SUITCASE__EP-DVQAA-D-DL-A__OCT_1976_gray.pdf
                CVKUAA0__KUV11-AA__LSI_WCS_DIAGNOSTIC__AH-E103A-MC__JUN_1978_gray.pdf
                MD-11-DTRKA-B__RK11__DEVICE_ROUTINE_MPG__EP-DTRKA-B-DL-A__NOV_1976_gray.pdf
                MD-11-DVKAG-A__LSI11__EIS_DIAGNOSTIC__EP-DVKAG-A-DL-A__OCT_1976_gray.pdf

                Comment


                  Amazing effort Joerg, thanks for all of this.

                  Comment


                    It is being transfered to bitsavers, and will be 25% of the entire pdf archive size, which is currently around 300gb
                    It will probably be there in a day or so.

                    Comment


                      Hi,

                      Originally posted by Hunta View Post
                      Something strange with
                      MD-11-DVQAA-D__LSI11__SUITCASE__EP-DVQAA-D-DL-A__OCT_1976_bw.pdf
                      MD-11-DVQAA-D__LSI11__SUITCASE__EP-DVQAA-D-DL-A__OCT_1976_gray.pdf
                      CVKUAA0__KUV11-AA__LSI_WCS_DIAGNOSTIC__AH-E103A-MC__JUN_1978_gray.pdf
                      MD-11-DTRKA-B__RK11__DEVICE_ROUTINE_MPG__EP-DTRKA-B-DL-A__NOV_1976_gray.pdf
                      MD-11-DVKAG-A__LSI11__EIS_DIAGNOSTIC__EP-DVKAG-A-DL-A__OCT_1976_gray.pdf
                      You're right: these 4 listings have the fiche photo only, but no listing pages.
                      Reason is explained in the *.dat file, field "Scan.Note":

                      MD-11-DVQAA-D__LSI11__SUITCASE__EP-DVQAA-D-DL-A__OCT_1976_bw.pdf
                      MD-11-DVQAA-D__LSI11__SUITCASE__EP-DVQAA-D-DL-A__OCT_1976_gray.pdf
                      Scan.Note=Fiche contains MD-11-DWQAA-A LSI11 SUITCASE TEST

                      CVKUAA0__KUV11-AA__LSI_WCS_DIAGNOSTIC__AH-E103A-MC__JUN_1978_gray.pdf
                      Scan.Note=Wrong title strip: Fiche contained MAINDEC-11-DVKAJ-A-D

                      MD-11-DTRKA-B__RK11__DEVICE_ROUTINE_MPG__EP-DTRKA-B-DL-A__NOV_1976_gray.pdf
                      Scan.Note=Fiche contains MPG MINIMAL SUPPORT ROUTINES MD-11-DTMSA-A

                      MD-11-DVKAG-A__LSI11__EIS_DIAGNOSTIC__EP-DVKAG-A-DL-A__OCT_1976_gray.pdf
                      Scan.Note=Fiche contains MAINDEC-11-DVKAHA-A LSI-11 4K SYSTEM TEST


                      In a few cases (about 10+ of 1600) DEC mounted wrong title strip to the listings.
                      For some cases I could assign the correct listing from other mixed up fiches, but for these 4 title strips I did not found the correct listings.
                      So they remain empty, as a memory that something strange happened here.

                      Joerg






                      Comment


                        Originally posted by Joerg Hoppe View Post
                        Reason is explained in the *.dat file, field "Scan.Note":
                        Thanks!

                        Comment


                          Amazing effort Joerg, thanks for all of this.

                          Comment


                            Great work to all participants! I could not be happier.

                            Please see my blog for a message.

                            Comment


                              Guys,
                              Another elephant has been eaten:
                              The complete source code listings of VAX/VMS 4.0/4.1 are scanned (93.000 pages)

                              Unluckily I can't publish them, until I know what harm HP's lawyers can do to me.

                              Lets continue discussion on the "VAX/VMS sources on microfiche listed on ebay" thread.

                              Joerg

                              Comment

                              Working...
                              X