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Dog Cow

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  1. Here are a few statements and observations which may assist you in troubleshooting: The screen display comes from RAM and does not require a functioning CPU or ROM because the binary contents of the DRAM chips typically power on with a $00FF pattern which produces the black and white pattern as shown in your last photo. When the Motorola CPU is released from reset and begins executing instructions from ROM, among the first things it does it to clear the screen to black, and then call the BootBeep subroutine to make the familiar chime sound. After the chime, the instructions
  2. ClarisWorks 2.1v3 got a lot of stuff done for me back in the day!
  3. Some processes will lock out certain levels of CPU interrupts, so the mouse movement doesn't get processed by the CPU. The classic example is during floppy disk initialization. If you move the mouse pointer while initializing a floppy disk, you'll see the pointer jump around.
  4. These questions and others in your post are points that I've been thinking about a lot since last fall, as I'm planning and designing a new email client. In the past few weeks I've come to the conclusion that the vintage Mac just can't handle all that data, so don't expect it to. Or just let the user's disk space be the limiter. Maybe you only see the latest 50 or 100 or 400 messages in your Inbox because that's all the disk space you've got for 'em. Or you just download the headers, and don't download the body of the message unless the user opens it. I've been taking a lot of desi
  5. I used MS QuickBasic on an SE/30 back in the late 1990s. I have the manuals for it too.
  6. You know what they say, spinning iron gathers no rust. Use it or lose it.
  7. That's not a big problem. HTML emails are not a problem. First of all, they're often multipart MIME with a plaintext component (as you said in your post above). I can't say that all HTML emails are sent this way, but enough of them do indeed contain a plaintext MIME part. Furthermore, IMAP allows you to download just about any part of the message you want. It's a powerful protocol for message retrieval. (Actually, POP3 and IMAP are conceptually both file transfer protocols when you think about it, as is SMTP. At its core, electronic mail is merely a specialized form of file transfe
  8. I'm working on a brand-new email client called Aurora that will work on a Mac 128K or better. The first version will have POP3 + SMTP, and I plan to do IMAP for the next version.
  9. Definitely true. I now make it a point, that if I have even the slightest thought that I might reuse a subroutine again, to make that subroutine fairly general-purpose. And yes, now that I've written 5 Macintosh applications in 2 years (TeleDisk, Sabina Test, Sabina Setup, Neptune, Aurora) it is paying off because I'm building my own library of subroutines.
  10. I don't know any more about benchmarking applications other than what I've read in old Usenet posts. I've never run either DiskBench, DiskTimer, or any other benchmarking application on any pre-SCSI Mac. I just know that they exist, and that they were controversial in their day.
  11. Try Steve Brecher's DiskTimer. Or try DiskBench.
  12. You just described System 7 Program Linking. Check out Inside Macintosh volume VI.
  13. High speeds are possible; AppleTalk is 230. Sabina TCP does 56k on an 8MHz 68000. I timed an HTTP download at 3.2kb/sec last week using the Neptune Web client. On the SE/30, at same baud, it goes about 4KB/sec. The serial ports need special configuration, but they can go higher than 56k. Much higher.
  14. 1.) The Macintosh II, released in spring 1987, was the first Macintosh that did not have built-in video. 2.) Immediately 3.) Framebuffer is accessed thru NuBus memory. The framebuffer is on the NuBus card. It is memory mapped into the CPU's address space. Read Inside Macintosh volume V for details on NuBus and video for the Macintosh II. It should give answers to some of your other questions.
  15. 1.) If you mean as its internal drive, then I would say no. 2.) There were more FDHS drives produced than any other kind of 3.5" disk drive for Macintosh, so probably more of them still exist today, so probably they are not too hard to find.
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