Apple II

Apple IIGS RAM Failure Diagnostics

Submitted by techconspiracy on January 12, 2026 - 10:27pm

I recently acquired an Apple IIGS.  When turning the computer on, the screen fills with the "@" symbol for about half a second (which I believe is normal), then shows the following corrupted display:

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Introducing BurgerDisk, a daisy-chainable Smartport hard drive

Submitted by colinleroy on January 12, 2026 - 3:40pm

BurgerDisk is a Smartport hard drive for the Apple II. Its main unique feature is that it is daisy-chainable.

As all Smartport SD-based hard drives, it's more adapted to the non-slotted Apple II, like the //c and IIgs.

 

Here are a couple pictures of the finished device:

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Jim Sather

Submitted by Khaibitgfx on January 5, 2026 - 12:04pm

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ImageWriter/Super Serial Troubleshooting

Submitted by Anonymoose on January 5, 2026 - 11:12am

Hello,

Seems I've run into a slight issue that I'm also curious about.

 

My ImageWriter DIPs are set to the defaults (11101011 0010) and so are my Super Serial DIPS (terminal mode, 0001011 1001100). However, in AppleWriter 2.1 when printing with the defacto 9600,8,N,1 setting, nothing is printed. It's only when I set DIP 5 on the printer to zero (ignores 8th data bit) that it prints correctly.

 

Not that this is a serious issue, I'm just curious if this is the correct setup and why it's happening. I'd like to learn about parity and whatnot :)

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New Text Adventure for the Apple II+: Kill Wizard

Submitted by DrkStarr on January 3, 2026 - 12:04pm

Hello. I put together a text adventure using PunyInform and documentation from the Kansasfest 2017. It’s an easy game, with a couple of challenging puzzles, that I built around the interpreter to run on the Apple II+. I had to use the old Infocom one from Lurking Horror to get it to work correctly on an Apple. If anyone is interested, it’s up on itch: Kill Wizard. It should run on a standard II+, though I only tested it using BMOW Floppy Emu.

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Am I the only one who has thought of this? Updating Apple II models to the latest ProDOS

Submitted by FHR on December 31, 2025 - 5:33pm

I've been thinking an idea on Apple II systems, and I'm hoping I'm not the only one who has asked this beofre. I wonder if there's a way to get the latest ProDOS (2.5 a8 or whichever version) and flash onto the ROM. Upon booting, it shows the exact model, (Apple IIe Platinum, Apple II Plus, etc), and on system level 'boot' into the bitsy bye programs, as well as use other new tools provided by ProDOS.  Could something like this work? 

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How do I get prodos.sys onto my 32M Apple disk image so it boots?

Submitted by linuxha on December 28, 2025 - 1:08pm

I'm currently workin on the FROB (Apple II/Atari VCS board) and trying to get all my files easily reachable. So far I'm not quite there.

How do I get ProDOS.sys onto my 32M Apple disk image so it boots into ProDOS?

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Low V

Submitted by Wayne on December 28, 2025 - 11:37am

Some time back I built a card to read all 4 voltages and yesterday took a few minutes to check the IIgs power supplies I had handy. Most I had checked several years ago but there had been some changes. A couple of power supplies are a bit off. I have a +11.5 on one and a +11.6 on another.

Now, what to do? I likely have most of the caps on hand so maybe replace those and see if there’s a difference.

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