Re: Appletalk on IIC

[wshek@ibm.net]

In <5k3j5i$grj$1@europa.frii.com>, shack@deimos.frii.com (Randy Shackelford) writes:
>In article <3365065f.0@news1.ibm.net>,  <wshek@ibm.net> wrote:
>>In <david.862027332@wraith>, david@uow.edu.au (David E A Wilson) writes:
>
>>I'm not understanding why you need extra hardware, the mac doesn't use it?
>>I started AT on my macs using just the extra printer cable I have
>>joining the serial ports of 2 machines. (works great)
>>As for processor not being enough.... on a //C it's not doing anything else 
>>anyway and as for memory .... where do you put stuff you load from a disk
>>drive? The //c serial buffering as implemented should be sufficient.
>
>Macs, IIgses, and workstation cards have the Zilog 8530 serial chip and //c's
>do not. Not to mention the necessary firmware. And workstation cards have a
>dedicated 65C02 on top of all that. So no dice really.
>-- 
>Randy Shackelford                                 
>shack@frii.com                                    


Look, the macs and gs are more powerful thus may be doing more
ie require something to manage the function while possibly busy.
The //c is basically a single threaded straightline process. It has 
similar buffer managing chips. Doesn't require an extra process
because it aint busy. And firmware is just an extra, after all just
software burned write only.

-Walt