Re: oh, no: 2 questions

[CUTjefbla@bconnex.net (Jeff Blakeney)]

On 30 Dec 1998 20:13 EDT, spec@vax2.concordia.ca (Mitchell Spector)
wrote:

>In article supertimer@aol.com (Supertimer) writes...
>>I don't have a 56k modem to test at that speed, but for sure even an
>>unaccelerated IIGS is capable of keeping up without dropping
>>characters at 28.8k connections at least.
>
>    Not from my experience, or even hardware knowledge of the IIgs. 
>A stock 2.6 MHz system is too slow to keep up with characters that
>are being sent to the screen, and characters *will* drop. You can
>lessen the problem by shift-booting the IIgs, or if using ProTERM,
>bypass GS/OS and boot it directly from ProDOS 8, but it certainly
>won't make the problem disappear.
>
>    A stock system can keep up with the pace of a 14.4k modem fine,
>but above that you _will_ need an accelerator card. This is a fact.

Well, as much as I hate the idea of stepping into the middle of one of
your "debates"...  :-)

For the record, I have used a stock IIgs at 38,400 bps to do file
transfers from my 486 to my IIgs with my old slow hard drive.  I don't
think I have a properly wired null-modem cable so under Spectrum I
would get a fair number of checksum errors at this speed usually right
after data was written to my slow hard drive.  Using ProTERM, the
number of checksum errors was less (due to quicker screen updates with
ProTERM using a text display instead of SHR like Spectrum).

I could almost always do the transfers with no errors at 19,200 bps
and I'm pretty sure the times I did get errors it could be attributed
to the slow hard drive and improper null-modem cable.

However, one thing to note is that Marinetti v2.0 seemed to run just
fine on my stock IIgs at 38,400 bps to my modem.  It certainly didn't
seem to need to ask the server I connected to to retransmit packets
due to lost characters.  It was quite responsive.

Now that I have an accelerator, I've set everything up to use 57,600
bps and have been running just fine.  :-)

=== To ensure I see a reply please also e-mail me but remember to:
    CUT the obvious from my e-mail address to e-mail me
    Jeff Blakeney - Dean of the Apple II University on Delphi
*** HyperCard IIgs course now in session in the A2Pro forum on Delphi