Re: Help Transporter _modem_

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

In article <fmlinCuqt2o.20I@netcom.com>, Frank M. Lin <fmlin@netcom.com> wrote:
> In article <CuoD4z.LHL@actrix.gen.nz>,
> David Empson <dempson@actrix.gen.nz> wrote:
> 
> > [..]
> 
> >The video display is built into the PCT and doesn't require software
> >assistance from the Apple, hence it runs a lot faster than most other
> >PCT I/O.
> 
> When I ran Telemate 4.1 at 4800, the limiting of speed was definetely
> screen update.

I couldn't get file transfers to go faster than about 210 characters
per second (just couting time required to transfer data into the PCT's
memory).

Screen updates had nothing to do with it.  In addition, any screen
update speed problems on a PC will be software issues, not hardware.
If the program is outputting text via the BIOS or DOS, it will
undoubtedly be slow.  It should write directly to the screen if it
wants to support fast text output, and use hardware scrolling.
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand