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Article #674

snail-like ESDI; about these new monitors...

#674
From: Dick O'Connor
Date: Wed, 30 Dec 1992 16:18
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End of the year miscellaneous queries :)

(1) I've got a Z386/25 with one of the older DTC 10MHz ESDI controllers in
it running a NEC 150MB ESDI drive.  I always thought it was a bit slow.  I
just added a SCSI drive and I *really* saw a difference so I used the 
benchmark programs in PCTools to compare the two.  On seeks and positioning,
the two drives are very similar, but the SCSI has a Data Transfer Rate of
around 900K/s, while the ESDI comes in at 53K/s!  Is this controller slow
or is something maladjusted in the system?  This model controller doesn't 
have DIP switches, and the only jumper blocks I can identify (3 all told)
appear to be for testing purposes.  (Jeff Easton told me what they did
once, but I don't have my notes here.  Suffice to say none of them
enabled 'tortoise' mode, as I recall...).  Maybe SMARTdrive was running at
the time.  Would this cause such a discrepancy?

(2) What is WITH all these ZDS monitors, anyway?  I mean, can somebody please
post some specs on this bewildering array of new model numbers so we can
figure out what's going on?  (Have I been watching too much Seinfeld?)  What
on earth is a ZDS-284m?  Is it like anything we've seen before from ZDS?
How about the ZDS-394m?  Point 39 dot pitch, are we supposed to take this
seriously, or has ZDS found a way to make .39 look clean and clear?  A relative
was interested in buying a ZDS 386SX/25 bundle available at a local discount
shop (BEST), but they had none on display, and I couldn't recommend a bundle 
with a .39 monitor I knew nothing else about.  Can someone from ZDS please
post relevant specs about all the current monitors, especially tidbits like
what they are intended to replace (if anything), and who makes them? ;)

Have a very Happy New Year.  Go Huskies, Beat the Wolverines!!!!!!!!!!!!!

-- 
"Moby" Dick O'Connor                                 djo7613@u.washington.edu 
Wash. Dept. of Fisheries   *When the going gets tough, the tough go fishing!*
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From: djo7613@hardy.u.washington.edu (Dick O'Connor)
Newsgroups: comp.sys.zenith
Subject: snail-like ESDI; about these new monitors...
Keywords: ESDI, slow, ZDS monitors
Message-ID: <1hsi4oINNmve@shelley.u.washington.edu>
Date: 30 Dec 92 16:18:32 GMT
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Organization: University of Washington
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