Re: Bring Apple][ back with USB / BlueTooth

On Aug 12, 1:54 am, johnsonlam <johnsonlam...@xxxxxxxxx> wrote:
On Aug 11, 3:22 am, russo...@xxxxxxxxxxxxxxxxxxx (Matthew T. Russotto)
wrote:

It was genius, and it was right for the time, but it did have its
drawbacks. The tight integration of all the system clocks with one
another, in addition to hardware timing loops for things like disk
drives, meant that the design really couldn't scale up. The

Nothing is perfect.
Back in the years, resources are limited and the price is high, Woz
did an excellent job to make a working computer with low cost, high
efficiency with expandability.

interleaved video access saved chips but made software for using the
thing that much more difficult. Sometimes it's best to bite the
bullet and use more hardware to get a cleaner and more scalable
architecture.

That's why nowadays everything goes modular.

And this is another reason Apple][ can't hardly improve anymore since
the low level clock cycle and timing was so tight, theoretically
Apple ][ can use SATA 3G hard disk, if someone make a bridging-circuit
from the slot-6 to translate the signal, it won't be easy but after
checking out the Apple][ IDE interface I believe nothing can't be
done, just depends on the time and money spent.

And I'm thinking can we raise the speed of Apple][ CPU and the
interface to make it work with today's device?

Too bad I'm no electronic engineer, but it's fun to research the
possibility.

Rgds,
Johnson.

If you split the clock signals from the video generator, I/O and CPU
then possibly you could get everything to work off of separate timings
-- provided you could work out the ram access issues that would
entail. This is essentially what accelerator boards (transwarp, zip
chip, rocket chip) did to achieve faster CPU speeds. But really, that
would cause a lot of things built around that architecture to falter
(paddle read routines, speaker-based sound, disk I/O) since those
behaviors were what software (esp. games) and hardware for the
Apple // were designed around. I know I had to disable my ZIP chip
often in order for games to work properly.

-B
.

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