Wed, 5 Sep 2001 Gregg Eshelman wrote:
>It's amazing how much computer hardware from the 80's
>and early 90's had ports and connectors "for future
>expansion" or "for future use". About 99.9% of that
>"future" stuff never happened.
How true. I am reading a Swedish version of the Macintosh SE Technical
Information booklet. (BTW, the accompanying user guide tells me that SE
stands for "System Expandable" - I didn't know that.)
The booklet states that, in my translation, "The SE bus is a card socket
that enables installation of expansion cards to the microprocessor.
(...) You can install expansion cards that enable you to use MS-DOS
programs, connect peripherals, e. g. a 5.25 inch floppy drive, (...)"
Were these two cards ever produced? I'd love to see an SE DOS-compatible
running PC software off 5 1/4 inch floppies.
Next item: I was using external 800 K floppy drives to read and
copy ancient, worn-out original installation floppies. For some
reason, these old peripherals easily read and copy bad 800 K floppies
that were proven unreadable in six Macs with internal drives (two
SE/30, PB180, LC630, Q650, and PM8200).
Interestingly, one of the drives, a third-party one (Phaser 800 from
Warp Nine Engineering Inc., Minnesota) consistenly failed to read any -
even Known Good(TM) - DD floppies when connected to an SE/30 with
System 7,1, but worked flawlessly when connected to the Plus, System
6.0.8. Anybody want to suggest an explanation for this behaviour? (Bad
cabling/connectors have been ruled out.)
/Mikael
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