On 10 Mar 2006, at 2:04 PM, Phil Daley wrote:

At 3/10/2006 01:20 PM, Darcy James Argue wrote:

>On 10 Mar 2006, at 1:04 PM, Phil Daley wrote:
>
>> I guess, if all programs had MDI, so you could click on a file and
>> the already open program launched a new window, it would not be a
>> problem.
>
>This is how the Mac OS has *always* worked. It's fundamental to the
>OS. There is no such thing as a "SDI" in Mac OS. (... well, except
>for library-style apps like iTunes and iPhoto, where there is never
>any need to spawn more than one window).

Always?

Yes. Of course. From the very beginning, Mac OS has never had anything like SDI. If you wanted to open a second document in MacWrite 1.0, you opened a second document, not a second copy of the app. It's been a fundamental part of the OS since 1984.

So I can take my Macs apps from System 6 and run them on the current Mac OS without any problems?

Completely different question. But, on a non-Intel Mac, yes -- if the app ran in OS 9, it will run in Classic.

Of course, this ends with the Intel Macs. But DOS support won't last forever, either.

- Darcy
-----
[EMAIL PROTECTED]
http://secretsociety.typepad.com
Brooklyn, NY


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