The future of our hobby (was Re: ImageDisk project is canceled)

[Roy J. Tellason]

On Thursday 29 December 2005 04:32 pm, woodelf wrote:
> Tony Duell wrote:
> >[1] Note for the uninitiated. The IBM serial card has 2 odd features that
> >were not present in most, if not all, clones. The first is that it can
> >pull pin B8 (IIRS) low during I/O reads, needed if the card is used in
> >slot 8 of the IBM PC/XT. The second is that it has a current loop
> >interface  as well as RS232 .
>
> Does any of the newer serial cards have the current loop option?
> Was it only TTY's that used the current loop?

First ever "hands on" computer for me was a Heathkit H11 system that I got to 
build.  The "terminal" for it was a Decwriter,  which used current loop,  if 
I'm remembering right.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
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Information is more dangerous than cannon to a society ruled by lies. --James 
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