Re: Q: APPLE // PLUS

[dempson@atlantis.actrix.gen.nz (David Empson)]

In article <3piblu$8vi@cello.gina.calstate.edu>,
LA County Outdoor Science School <lacoss@cello.gina.calstate.edu> wrote:
> 
> The main differences are:
> 
>  - 800k 3.5 drive built in rather than 140k 5.25
>  - Faster processor.  4 mHz rather than 1.  Actually faster than a stock GS

That isn't quite true.  The IIc+ has a 4 MHz accelerator attached to
the processor, but the rest of the computer still runs at 1 MHz.
Under ideal conditions (cached loops) it runs at 4 MHz.  Non-cached
accesses are at 1 MHz.  Assuming it is identical to the ZIP, all
writes are also at 1 MHz.

Depending on what the program is doing, it will be running at anything
from the same speed as a 1 MHz Apple II to four times faster.

The IIgs is limited to 1 MHz when accessing "slow" memory (e.g. I/O
and video memory) but can run at about 2.5 MHz when accessing "fast"
memory, and 2.8 MHz when accessing ROM.  Otherwise, there are no
delays.
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand