33 votes
Accepted

Why was the Apple III considered a failure (if indeed it was)?

The Apple III is infamous for its high rate of manufacturing defects, which led Apple to tell customers to pick the machine up and drop it onto the desk, hoping that would jolt its loose chips back ...
Davislor's user avatar
  • 8,686
18 votes

Why was the Apple III considered a failure (if indeed it was)?

I'd like to repeat Brian's conclusion: TL;DR The myth of the Apple III's failure has been greatly exaggerated. Yes, it's a bit like a fishing tale - it grows in size. TL;DR#2 Nonetheless it was a ...
Raffzahn's user avatar
  • 223k
17 votes

Was Apple DOS 3.3 created because of the Apple III?

No, conversion to 16-sector format (and the necessary change from DOS 3.2 to DOS 3.3) was a consequence of Steven Wozniak realizing that he could get more capacity by tweaking the Apple II floppy ...
dirkt's user avatar
  • 27.3k
16 votes
Accepted

Was Apple DOS 3.3 created because of the Apple III?

TL;DR: No, not really. It was even more twisted. 16 sector was done for the Pascal System for the Apple II, independently and before the Apple III got it, but didn't get rolled out for DOS until after ...
Raffzahn's user avatar
  • 223k
16 votes

Why was the Apple III considered a failure (if indeed it was)?

TL;DR The myth of the Apple III's failure has been greatly exaggerated. First off, it's been 45 years since the introduction of the Apple II, and it's easy to forget how much attention in the computer ...
Brian H's user avatar
  • 60.8k
16 votes

Did Apple really advise customers to lift up and then drop their computers?

On Jan 7, 2012, Dave Ottalini, Washington Apple Pi Apple III SIG Chair, announced on the Facebook Apple /// Enthusiasts group that their Apple /// DVD, which formerly sold for $35, is now reclassified ...
Joe's user avatar
  • 1,592
13 votes

Did Apple really advise customers to lift up and then drop their computers?

I had an Apple III on my desk at Apple, and IIRC, Dan Kottke, who was working at a lab bench near mine, told me to try this if the III started acting flakey. Then later, he found another solution (...
hotpaw2's user avatar
  • 8,183
12 votes

Why did the Apple III have more heating problems than the Altair?

The absence of a fan was only part of the problem. (By the way, the Apple II also did not have a fan). [1] describes it like this: Those that did work initially often failed after minimal use thanks ...
dirkt's user avatar
  • 27.3k
11 votes
Accepted

Why did the Apple III not support the color red?

I was playing around with an emulated Apple /// and while looking at the color demo I noticed that unlike the Apple ][, Not really, as the Apple II also didn't do red, just orange. Apple II colours ...
Raffzahn's user avatar
  • 223k
10 votes
Accepted

Why did the Apple III have more heating problems than the Altair?

TL;DR: Basic Design Altair excels in thermal over the Apple III by two several basic points: Less Power to be Removed More Volume to Handle the Heat Transport Better Airflow to Remove Heat Power ...
Raffzahn's user avatar
  • 223k
10 votes
Accepted

What was the purpose of the Apple /// interlace mode?

According to the Apple III Plus Owner's Guide, the interlace mode is called "text interlace": text interlace a Feature of the Apple III console that, when activated, increases the resolution of ...
snips-n-snails's user avatar
8 votes
Accepted

Is it possible to detect Vertical Blanking on an Apple III

Yes, it is possible. I'm annoyingly unable to find a simple technical reference, but from the Apple III SOS source code: [Page 5] 2EF8: * 2EF8: * 6522 REGISTERS 2EF8: * ... 2EF8: E.IFR EQU $FEED ...
Tommy's user avatar
  • 36.9k
6 votes

Why is the following p-Code generated by the Apple 3 pascal compiler?

How can I recognise in the p-Code, that this is an integer function and has not 3 parameter values (6 bytes = 3 words data). Has not? To be honest, I'm a bit confused about what you're asking. So ...
Raffzahn's user avatar
  • 223k
5 votes

Is it possible to detect Vertical Blanking on an Apple III

According to the Apple III Standard Device Drivers Manual, the .CONSOLE device driver provides a function to wait for vertical blanking. This function could effectively replace the simple VBL polling ...
Darren's user avatar
  • 640
5 votes

Did Apple really advise customers to lift up and then drop their computers?

I remember that was a fix advised for the Amiga 500, I can only find this (not very good) reference from 1996: [Amiga Tech Secret: One of Commodore's authorized "checks" for a "mis-seated A500 ...
Recycled Steel's user avatar
5 votes

Did Apple really advise customers to lift up and then drop their computers?

I can't speak to the original question, but similar issues/solutions are well known. I had an Atari ST with socketed ROMs. They would periodically work their way out due to heat causing the mobo to ...
Maury Markowitz's user avatar
4 votes

How did the Apple III+ differ from the original Apple III?

Most important changes: 55-watt power supply, 256 KB of RAM as base size, A new keyboard (Much like the later IIe), clock included (built in), standard port connectors.
Raffzahn's user avatar
  • 223k
4 votes

Was Apple DOS 3.3 created because of the Apple III?

Sorry, but the first post is incorrect. Second poster is correct, along with the Disk II controller update. P5 and P6 are the ROMS that were replaced, but otherwise no difference. One is a state ...
Andy's user avatar
  • 49
3 votes
Accepted

Why is the following p-Code generated by the Apple 3 pascal compiler?

If you look at the return code in the function above "RNP 01" stands for "return from nonbase procedure and return 1 word as a function result. Therefore this must be an integer/scalar/boolean ...
Tiza's user avatar
  • 156

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