Re: Best memory chips for the Apple II+ ?

["Ernest" <leucoplast@seanet.NOSPAM.com>]

"Linards Ticmanis" <ticmanis@coli.uni-sb.de> wrote in message
news:bj6422$2b3ki$1@hades.rz.uni-saarland.de...
> Ernest wrote:
> > Ideally, what are the best memory chips to use in the Apple II+ (and
> > compatibles?) My Basis is using 200ns memory chips but I would like to
> > upgrade them to something faster/better if it's possible but I have no
idea
> > what is available.
> >
> > Are there any sources for better memory chips?
> >
> > Thanks.
>
> The whole (pre-GS) Apple II system is built around a single clock and
> its whole-number-division-derived, fixed subclocks. You can't speed up
> just one thing easily without also speeding up the others, and e.g.
> speeding up the CPU clock stops disk access from working since the
> computer expects the bits to come in at a certain speed relative to the
> clock. Also you break NTSC video norm compatibility which means, at
> least, no more color display. The accelerators get aroung this by
> de-coupling the CPU clock from the other clocks but this involves some
> rather complex electronics.
>
> In modern PCs coupling is more loose to begin with so speeding up
> components is more feasible.


Thanks for your help, guys. Those are the answers that I was looking for.

E.