30 Jan
1998
30 Jan
'98
1:20 p.m.
At 02:39 AM 1/30/98 -0500, you wrote:
> Have you ever seen a Zenith "MiniSport"?
Uses 2" floppies? I found
[...]
do its upload and you've got at least one disk, you
can probably
(don't count on it, but probably) attach a parallel Zip drive).
Question: when did parallel ports become bi-directional (i.e., useable for
zip drives and such)?
Or, to put it another way, how likely would I be able to (ignoring software
issues for the moment) hook up my new SyJet drive to say, my m100? What
about my DG-1?
(P.S., off-topic tip: The Parallel port SyJet is really a SCSI-2 SyJet
with a fancy cable; if you've already got SCSI, and can maybe use the
Parallel port feature...)
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
31 Jan
31 Jan
3:13 a.m.
On Fri, 30 Jan 1998 21:20:22 -0600 (CST), you said:
At 02:39 AM 1/30/98 -0500, you wrote:
I thought they always were bi-directional on IBM-compats. I've run
Laplink on almost every PC I've ever owned.
_______________
Barry Peterson bmpete(a)swbell.net
Husband to Diane, Father to Doug,
Grandfather to Zoe and Tegan.
> Have you ever seen a Zenith
"MiniSport"? Uses 2" floppies? I found
[...]
do its upload and you've got at least one
disk, you can probably
(don't count on it, but probably) attach a parallel Zip drive).
Question: when did parallel ports become bi-directional (i.e., useable for
zip drives and such)? 
5:51 a.m.
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2:33 p.m.
Barry Peterson wrote:
On Fri, 30 Jan 1998 21:20:22 -0600 (CST), you said:
Not quite. There are two ways of getting bidirectional data transfers
out of a parallel port. The first which will work on any compatible is
to use the normal data lines for output and the status lines for input.
This limits the speeed since only 4 bits at a time can be read. Later
implementations of the parallel port allowed full 8 bit bidirectional
transfers on the data lines, providing a higher possible data rate.
It is my understanding that most (older) software can work in either of
the two modes.
--
Hans B. Pufal : <mailto:hansp@digiweb.com>
Comprehensive Computer Catalogue : <http://www.digiweb.com/~hansp/ccc/>
_-_-__-___--_-____-_--_-_-____--_---_-_---_--__--_--_--____---_--_--__--_
At 02:39 AM 1/30/98 -0500, you wrote:
I thought they always were bi-directional on IBM-compats. I've run
Laplink on almost every PC I've ever owned. > Have you ever seen a Zenith
"MiniSport"? Uses 2" floppies? I found
[...]
do its upload and you've got at least one
disk, you can probably
(don't count on it, but probably) attach a parallel Zip drive).
Question: when did parallel ports become bi-directional (i.e., useable for
zip drives and such)? 
3 Feb
3 Feb
3:52 p.m.
At 05:13 PM 1/31/98 GMT, you wrote:
On Fri, 30 Jan 1998 21:20:22 -0600 (CST), you said:
They were bi-directional in nearly all compatables but not in some of
the early IBMs. Most of the clones were built later and used a newer
design that was bi-directional.
Joe
At 02:39 AM 1/30/98 -0500, you wrote:
I thought they always were bi-directional on IBM-compats. I've run
Laplink on almost every PC I've ever owned. > Have you ever seen a Zenith
"MiniSport"? Uses 2" floppies? I found
[...]
do its upload and you've got at least one
disk, you can probably
(don't count on it, but probably) attach a parallel Zip drive).
Question: when did parallel ports become bi-directional (i.e., useable for
zip drives and such)? _______________
Barry Peterson bmpete(a)swbell.net
Husband to Diane, Father to Doug,
Grandfather to Zoe and Tegan.
9819
days inactive
9823
days old
4 comments
5 participants
participants (5)
-
ard＠p850ug1.demon.co.uk -
bmpete＠swbell.net -
hansp＠columbia.digiweb.com -
rigdonj＠intellistar.net -
sinasohn＠ricochet.net