13 May
2014
13 May
'14
4 p.m.
Oops.. should have mentioned this for clarity:
The original 128K Mac definitely can boot from the external hard disk.
But without a later 512K / 512Ke ROM you must first load MacOS from floppy,
and have the proper extension on your OS disk.
The extension allows the user to manually re-boot from the hard disk
on-demand. The same extension can also be configured to run at start-up,
such that it transparently transfers control to the external disk
automatically, once the disk-based MacOS has loaded the extension.
On Tue, May 13, 2014 at 5:55 PM, drlegendre . <drlegendre at gmail.com> wrote:
Back at the time, it was apparently common for folks
to replace the ROMs
in a M0001 128K Mac with the ROMs from a 512 / FatMac. Some other
enthusiast might have snagged them for their own upgrade project.
Among other things, the swap allows the 128K machine to boot directly from
an external HD, like the SD20. It may have other changes and hooks, to
allow use of later MacOS versions - but on a 128K board, I'm not sure how
far that gets you.
On Tue, May 13, 2014 at 5:26 PM, John Many Jars <
john at yoyodyne-propulsion.net> wrote:
On 13 May 2014 22:57, Fred Cisin <cisin at
xenosoft.com> wrote:
I have always reassured my programming students
that nothing that they
accidentally enter through the keyboard of their computers would
actually
DAMAGE the computer. One wiseguy said,"I
entered a Pepsi."
What about a killer poke?
http://en.wikipedia.org/wiki/Killer_poke
--
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Visit us at: http://www.yoyodyne-propulsion.net
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