Apple II

I found some kind of virus.

Submitted by Jiroplas on March 10, 2025 - 3:55pm

I found some old virus code that seems to be written in assembly language. it doesn't compile for some reason. I do not know what to do. Can someone help?

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Apple II

Sierra OnLine

Submitted by Khaibitgfx on March 10, 2025 - 9:35am

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Apple II

does anyone have a PL/I compiler?

Submitted by Jiroplas on March 10, 2025 - 5:03am

I have a very old PL/I code that I would like to compile. does anyone have compilers?

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Apple II

King's Quest 1

Submitted by Khaibitgfx on March 8, 2025 - 7:38pm

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Apple II

Assembler

Submitted by Jiroplas on March 8, 2025 - 11:49am

I need to run one assembler code on an apple 2. but I do not know how to do it! Can someone teach me?

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Apple II

Trying to locate Apple II serial number registry website

Submitted by old_hitech on March 7, 2025 - 8:55pm

I wanted to reference the webpage that had information about Apple II serial numbers and their motherboard revision number and other information, but I cannot seem to locate the webpage/weblink. 

Does this webpage still exists? If so, can someone provide a link.  Thanks.

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Apple II

Replacing IIc RAM Chips - Recommended USA Purchase

Submitted by Wavedude101 on March 6, 2025 - 2:57pm

After getting some blank discs and using ADT to burn some software, I'm finding out that my IIc has a few quirks at times. The biggest culprit being that there is an exclamation mark in the middle of the screen any time I am in 80 column mode. I cant find any information about this issue from anyone else online, but I do see that a lot of times users will have 2-3 exclamation marks on various parts of their screen usually due to a RAM issue. Though not as bad as some people's cases, it was worth doing some diagnosing to check if any internals were going bad.

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Apple II

Apple II Plus Keyboard Not Working Help

Submitted by glennmange on March 5, 2025 - 1:32pm

Hello, newbie to the forums. Former Apple II user from back in the 1980s. I recently acquired a couple of Apple II pluses. One works fine... on the other, the keyboard (non-encoder card type) does not work at all. The Power Light comes on but no keys work when pressed. I removed the Cable and MM5740 Chip and Cleaned the contacts and sockets but that didn't do squat...Another thing worth noting is that the previous owner installed a Keytronics KB-200 keyboard along with an interface board. On the keytronics keyboard, less than 1/2 the keys would work when pressed.

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Apple II

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