Questions tagged [apple-macintosh]

For questions about Apple's Macintosh line of computers.

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6
votes
3answers
483 views

How can I debug a Mac OS Classic application?

I have a Mac OS Classic application (a game) that I want to "debug". It has data files in a unique format than I am attempting to reverse-engineer. I've made some progress with a hex editor, but ...
6
votes
1answer
341 views

Old multimedia: Monochrome Macintosh / Laserdisc player

Back in about the mid-1980s, there was a period of time when "multimedia encyclopedia" and training resources were being made for schools, for the early monochrome-only Macintosh that tied it to a ...
6
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2answers
1k views

Macintosh LC II power supply clicking

I have a Macintosh LC II that I just acquired. When I attempted to power it on, I got nothing. No tones, no LED, no fan...nothing. I took out the power supply and tried to measure any voltage ...
6
votes
2answers
375 views

Macintosh SE/30 cover screw size

I lost the 4 Torq (T15) screws that hold together the case for a Mac SE/30. Does anyone know the size and the groove spacing to order a compatible one? I found these on eBay, but I'm not sure about ...
6
votes
1answer
561 views

What is the title of this Macintosh programming book?

Back when Mac OS was called "System" and preemptive multitasking was a distant fantasy, I had a small collection of Macintosh programming books. For the life of me, though, I can't remember what one ...
6
votes
1answer
2k views

Can the Gotek floppy emulator be made to work with classic Macs?

The Gotek floppy emulators are really popular in the retro scene. I have one modified (firmware update) to work with my Amiga 500. Can one be made to work with any of the classic line of Macintosh ...
6
votes
2answers
590 views

What is the highest version of System 7 that can be run on a Mac SE/30?

My recently restored Mac SE/30 has System 7.0 running on it at present, booting from an original SCSI HDD. I’m missing a few key features, like disk image mounting, which I understand were added in ...
6
votes
1answer
164 views

Was AppleTalk 422, 423, or something else entirely?

The Zilog SCC in the early Macs could operate in either 232 or 422 mode. AppleTalk used the later. 422 and 423 differed primarily in that the former used separate return lines for each data line, ...
6
votes
1answer
156 views

Is otx (Object Tool Extended) still actively being maintained for reverse engineering legacy OS X binaries?

otx is a tool used to disassemble Mach-O binaries on OS X 10.0-10.4. It is an enhancement on top of otool to add additional symbol information to its disassembled output. The main site and SVN ...
5
votes
1answer
271 views

Original Mac clock frequency

Why was the crystal clock frequency for the original Macintosh (128k,Plus, etc.) 15.667 MHz, instead of a multiple of 8 MHz (which was the maximum clock frequency for the speed grade of MC68000 ...
5
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2answers
426 views

Was Apple's Developer Release DR1 of Copland ever distributed?

From 1994 to 1996 Apple developed a complete new Mac OS, codenamed Copland, intended to be published as System 8. A first public demo was made at the May 1996 WWDC. Shortly before it was canceled, a ...
5
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2answers
145 views

How to get out of Apple IIe mode on Macintosh Color Classic?

I just picked-up a Macintosh Color Classic with an Apple IIe card. I've never used one of these before but was able to get it to enter into Apple IIe mode. However, I cannot seem to figure out how to ...
5
votes
1answer
345 views

Is is possible to repair a SE/30 with reversed C2 and C11 capacitors?

Shamelessly stolen from BobDenford on Reddit. I recapped my SE/30 but mistakenly reversed the polarity of the two axial capacitors (C2 and C11). Prior to my error, the machine was fully functional ...
5
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1answer
236 views

Macintosh System 6 on Quadra?

System 6 is not officially supported on 68040 Macintoshes, but has anyone successfully run System 6 on an early Quadra, e.g. the Quadra 700?
5
votes
2answers
225 views

Dimensioned drawing of 64-pin SIMM?

I am looking for a dimensioned drawing of a 64-pin SIMM PCB like the ones used in the Macintosh II series for the ROM SIMM. I looked in Guide to the Macintosh Family Hardware and Designing Cards and ...
5
votes
2answers
380 views

Tools for creating disk images on Mac Plus

I got BMOW's floppy emulator and have been pulling a bunch of files from 30 year old floppies (which have a miraculously low rate of failure) onto my SD card. One of the things I wanted to copy was a ...
5
votes
0answers
281 views

Find the PGP SDK

Starting in 1998 (I think) the PGP company run by Phil Zimmerman released the PGP SDK for Mac, Unix and Windows. This was a big event because it was the first time that comprehensive, high grade ...
4
votes
2answers
700 views

Why do mac LC network cards take an FPU?

I have several LC PDS network cards for my older LC's and they all have a socket which I assume is for an FPU... Given that I might be able to obtain said FPU for a few bucks, does anyone know what ...
4
votes
1answer
105 views

Why is my Macintosh LC 475 playing chimes of death when I install more ram?

I bought an LC 475 for parts and repair on ebay. When it arrived it seemed to work okay but the video was all stripey. After some diagnosing I spotted a rotten trace near the the VRAM simms. I ...
4
votes
2answers
347 views

iMac G3 - AirPort Card Port

What kind of port did the iMac G3 use for its wireless AirPort card? What kind of speeds were supported? My G3 has an 802.11b 2.4GHz band card and I am wondering if I can upgrade to a faster card (...
4
votes
2answers
147 views

Macintosh LC III Internal Speaker not working

I have an LC III that I had recapped, both the power supply and logic board were recapped and cleaned, on receiving it back everything worked with flying colors, but now (only a week later) the ...
4
votes
1answer
185 views

Basilisk II error

When I try to open the BasiliskIIGUI.exe I get errors saying things like 'The program can't start because libglib 2.0-0.dll is missing from your computer' I have the recommended GTK installed and I ...
3
votes
2answers
497 views

AppleTalk adapters to bridge LocalTalk to Ethernet?

What AppleTalk adapters can bridge LocalTalk to Ethernet? There are some adapter that allow LocalTalk printers to show up on ethernet, but I want to allow computers to talk. My IIgs has LocalTalk but ...
3
votes
2answers
445 views

When did the Macintosh start using four (or more) layer PCB's?

I'm assuming (but do not really know) that the original Macintosh used a two layer PCB. So my question is, when did the Macs start using more complicated boards with four (or more) layers? For ...
3
votes
2answers
308 views

When and why would MacinTalk say “open-apple hold”?

I'm trying to confirm a vague recollection about the text-to-speech PlainTalk / MacinTalk software shipped with Macintosh computers. If my memory is right, this would have been around 1994, and based ...
3
votes
2answers
333 views

Macintosh Performa 200 Mouse and Keyboard Issue

I have a Macintosh Performa 200 and I’m trying to get it working again. It powers on normally and then it brings up the normal Mac OS screen but the mouse and keyboard don't work. Yesterday they were ...
3
votes
2answers
303 views

68k macintosh lowmem system globals

While digging through a classic Mac 68k disassembly I got to the point where I need to know more about the "Boot Globals" residing in lowmem's system global variables. BootGlobPtr lives at $DDC, that'...
3
votes
1answer
188 views

How to work around the PRAM battery for a “Titanium” Powerbook G4

Years ago I was the original owner of a "Titanium" PowerBook G4. Eventually, the unit bricked itself and refused to power on. Some quick research at the time led me to believe the PRAM battery was ...
2
votes
6answers
5k views

Were Mac systems faster than Windows in processing performance? [closed]

This could be due to Mac OS having performance optimizations to run on Mac hardware? As far as I know this has been happening since the first Mac from 1984 (128k) and the release of Windows 1.0 (1985)....
2
votes
2answers
353 views

Programming on Macintosh Centris 610

I just bought a Macintosh Centris 610 and I'm trying to do some C programming on it. But I can't find the terminal and someone told me there isn't a terminal on classic MacOS. My goal is to have a ...
2
votes
1answer
759 views

How to read old 3.5" Macintosh formatted floppies on a MacBookPro

I have connected a USB external floppy drive to my Macbook Pro (OSX El Capitan). I am unable to "view" the external drive, and hence unable to access the floppy content. I have inserted a floppy, ...
2
votes
1answer
173 views

Mac SE tube won't come on?

My SE was working fine until I took it apart to clean it, and after reassembly the tube won't turn on, what could cause this? enter link description here
2
votes
2answers
217 views

Non-obvious compatibility of M1297 monitor

I bought an Apple IIgs recently. I didn't do my research well enough and wound up with an M1297 monitor, which of course appears to only be compatible with Macintosh IIs and such, rather than the ...
2
votes
1answer
320 views

Capacitor replacement on European 220 volt Mac 512K And Plus

I have had two Macs, a 512K and a Plus, in storage since they failed the smoke test in a spectacular manner a few years back. I have finally learned how to solder and de-solder, so I think its time to ...
1
vote
2answers
470 views

Why did Steve Jobs say that Darwin is a kernel? [closed]

In this video, Steve Jobs introduces Mac OS X (in the year 2000), this is a snapshot from the video: He says that Darwin is the kernel for Mac OS X. Now the following is a diagram of the Mac OS X ...
1
vote
1answer
376 views

What happened to the Apple Device SBC that was supposed to compete with the linux SBCs? [closed]

I am not sure if this question is "on topic" or not, but I'm asking it anyway... I was reading Hackaday.com a few months ago and I came across this article: https://hackaday.com/2016/04/01/apple-...
1
vote
1answer
282 views

How much time does a Mac SE/30 with 128 MB of memory take for its power-on memory test?

I've read that it should be possible to push the SE/30 to its maximum RAM capacity with eight pieces of 16 MByte, 30-Pin SIMMs. I've never seen such a machine in the wild. Neither with 64 or 80 MB. ...
0
votes
0answers
25 views

When did Apple deprecate or stop publishing the APIs for using HFS file forks other than the data and resource fork? [migrated]

Back in the day, one of the Quirks of the Macintosh OS was that files had two "forks", a "resource fork" which held resources used by software through dedicated resource APIs, and a "data fork", which ...

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