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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.
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  • 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.
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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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Lo-Tech 1MB card + Lo-Tech 2MB card?

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    Lo-Tech 1MB card + Lo-Tech 2MB card?

    Does anyone with a Lo-Tech 1MB card also have a Lo-Tech 2MB card installed in their machine? I am thinking of trying this after I get my floppy + serial card from Monotech working.

    I would use the 1MB card in my 5150 to get conventional RAM up to 640kB plus upper memory of A0000-B0000 and D0000-E0000. Memory space E0000-F0000 would be my paged EMS memory from the 2MB card.

    Would something like this work?

    Thanks!

    #2
    It’ll work. Just be aware there’s not a lot of software that really makes great use of EMS in an XT.

    I wrote a simple “enabler” that’s compatible with the lo-tech 2mb that lets you statically set it to fill its page frame with memory so you can use it as upper memory when EMS isn’t useful (without the overhead of having the EMS driver loaded), it sometimes comes in handy.
    My Retro-computing YouTube Channel (updates... eventually?): Paleozoic PCs Also: Blogspot

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      #3
      Eudimorphodon Thanks for the reply!

      My hope is the extra memory will be recognized by Windows 3.0. After loading Windows 3.0 I have about 440kB of free memory. Loading Excel brings it down to 234kB. I understand the memory access may be slow but at least it would be usable.

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        #4
        Windows 2.1/3.0 in Real Mode can use EMS, but it's mostly limited to storing data for larger documents/spreadsheets/whatever, it's not really going to help you multitask more programs. GEOS is surprisingly usable on an XT class machine and can make at least some use of it. Honestly, though, I couldn't really stand it either for long when limited to CGA resolution. I mean, there's a nostalgia factor, I dealt with CGA 640x200 well into the 286 era, but actually using it today... bleah. A Hercules Monochrome card might make things more interesting, I don't mind the monochrome but the lack of vertical pixels really is a killer.
        My Retro-computing YouTube Channel (updates... eventually?): Paleozoic PCs Also: Blogspot

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          #5
          Yes, using 2-color CGA does take some patience. My Atari STe has a similar resolution of 640x200 but offers 4 colors. It's amazing how much of a difference those 4 colors make! I would like to upgrade to a VGA display one day but finding a reasonably priced 8-bit card is not easy. Hercules is another option too. All that may come later.

          First thing first ... gotta finish beefing up the memory capacity.

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            #6
            I've got this config in my Tandy 1000.

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              #7
              Following up to my own post here!

              I ordered the 2MB card from Texelec and it arrived last Thursday. The memory is mapped to E0000. I had to disable this memory space on my Lo-Tech 1MB card and adjust USE!UMBS to exclude this memory. Adding the LTEMM.EXE line to my CONFIG.SYS file was easy-easy. I see the driver uses about 4kB of conventional memory.

              DOS and Window both recognize the memory! Now I can load larger spreadsheets and data files with some Windows apps. Very cool!

              I'm glad it all worked out.

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