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.
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Data General One

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    Data General One

    Hello everybody. I recently got a data general one from a trade, no psu, no diskettes. I found some pictures online of a psu for the data general one model 2, (6.4V 5A) and powered my data general one (first model) from a lab psu, after fixing the power button, the laptop tries to boot from floppy. the only problem is, the lcd stays blank. I opened up the case and on the pcb of the lcd module somebody seems to have replaced some of the caps (very messy job).
    does anyone have a picture of the pcb of the lcd module?
    does anyone know what voltage the first model of data general one needs to run properly?


    Others can answer the voltage question, but I ran into the DG One at a trade show when it had just come out.

    My reaction to it was "Is this thing on?".

    The display LCD (first version) is very faint, even on a new machine. The Model 2 was vastly better.

    My own notes say that the external PSU was 5.8V.
    Reach me: vcfblackhole _at_ protonmail dot com.


      Yeah, you will think there is something wrong with the LCD...but believe me, it's probably fine. It's that bad.
      General Failure Reading Drive C -
      Abort, Retry, Ignore?


        As for trying to read the screen, try getting a bright flashlight, place it on (yes, on. As in contacting the clear plastic) the screen, then wobble it around until you can see text. It usually takes about a 45 degree angle, but it varies based on Things.

        You wouldn't think so, but it really is that hard to see.
        Just a quick measurement of my (confirmed working) PSU gives about 6.3v, and the print on the side says it should be 6.4v, 2A for the one, and 6.4v, 3A for the other. The original PSU has a spot for a second cord, which you'd use to plug in the portable thermal printer. Not sure which one is which.
        Current favorites: IBM 5160 (EGA+Hercules+PGC, 8 floppy drives, XT-IDE), DCC D-116 (Nova 1200 clone), ASR 33 Teletype, PDP-8/I (lots of issues, restoration underway)
        Wishlist: IBM 5161 (expansion chassis), Diablo 31/RK02/RK05 or equivalent, Data General equipment, and the meaning of life.


          Anyone out there in the US have a Model 2? Interested in the keypad for it? PM me if so--I've got one.
          Reach me: vcfblackhole _at_ protonmail dot com.


            Ok, i immagine the screen is faint, but i can't see anything at this moment, when i turn it on, in a certain position i think i can see half the screen for one second or so get blank or get an slighlty other tone ... Afterwards, during boot it shows some very very faint vertical stripes in the upper half of the lcd screen. I saw online, text is faint but it is recognisable.

            Does anyone have an ideea of the front plexiglass should.come off easy? As i removed the of the lcd pannel the plexiglass came right off. I thought maybe the previous ovner removed the polariser film or.something..