Re: Apple //c+ questions....

[supertimer@aol.com (Supertimer)]

indizgize@aol.com (InDizgize) wrote:

>I've recently come into posession of a //c+.   I've never had any of the //c
>family of computers so I figured this would be the best place to start/finish.

>I've read the FAQ regarding the holding of the escape key to make the machine
>run "slower" but frankly I don't see any difference between "slow" and "fast".


Maybe a stuck ESC key?

>My stock unaccelerated //gs seems faster and it only runs at 2mhz in fast mode
>as opposed to the //c+'s supposed 4mhz.    The //c+ passes Apples internal and

That could be because the IIGS is not using caching and/or it has a
16-bit mode and 16-bit software cannot be compared directly to
8-bit software.

For example, GEOS on a 4Mhz IIc+ would not seem to run faster
than GS/OS on a stock IIGS even though GS/OS is a much more
complicated and capable OS.

>disk bases diagnostics just fine.  I'm wondering if there is any good/easy way
>to verify the speed of the machine.   On a related note what should I expect
to
>find in the processor socket??  65c02?? Something looking more like the old
>ZIPChip or RocketChip??  I'm asking this because I'm thinking that the chip
>currently in the machine is not the one that should be in there.

You will find a 4Mhz 65C02.  Apple licensed the ZipChip's design, but
decided to use discrete components intead of the "shrunk to one die"
design of the ZipChip.  Thus, the 8k SRAM and the "ZipChip" logic
are distributed over several chips and the CPU remains a separate chip.