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- Newsgroups: comp.unix.aux
- Path: sparky!uunet!elroy.jpl.nasa.gov!ames!nsisrv!jagubox!jim
- From: jim@jagubox.gsfc.nasa.gov (Jim Jagielski)
- Subject: Re: Mac accelerators and A/UX 3.0
- Message-ID: <874@jagubox.gsfc.nasa.gov>
- Sender: usenet@nsisrv.gsfc.nasa.gov (Usenet)
- Nntp-Posting-Host: jagubox.gsfc.nasa.gov
- Reply-To: jim@jagubox.gsfc.nasa.gov (Jim Jagielski)
- Organization: NASA/Goddard Space Flight Center
- References: <863@jagubox.gsfc.nasa.gov> <dmanning.712260444@cwis> <1992Jul27.213533.4284@noao.edu> <5!mmv7#.stever@netcom.com>
- Date: Tue, 28 Jul 1992 11:42:35 GMT
- Lines: 27
-
- stever@netcom.com (Steve Riggins) writes:
-
- >In article <1992Jul27.213533.4284@noao.edu> tody@noao.edu writes:
- >>Well ok, you can go either way I guess. The IIfx does have some advantages
- >>which haven't been mentioned, namely better serial port hardware and disk
- >>DMA. I am not familiar with the Daystar but I would guess that since it
- >>replaces the 030 all it does is provide a faster cpu. To me offloading the
- >>serial and disk i/o was as important as the faster cpu. For a few hundred
- >>dollars more than the Daystar you get both the custom i/o processors and
- >>a faster cpu, and end up with a standard system.
- >>
-
- >Except for the fact that no OS takes advantage of the DMA yet, and some apps do
- >not work with the serial chips in faster mode. I think that one could spend the
- >saved money on RAM (The ram is only used in some LaserWriters) on a SCSI-2
- >card and a SCSI-2 hard disk to get balzing speed.
-
- A/UX does take advantage of the DMA capability of the IIfx...
- --
- ==============================================================================
- #include <std/disclaimer.h>
-
- Jim Jagielski NASA/GSFC, Code 734.4
- jim@jagubox.gsfc.nasa.gov Greenbelt, MD 20771
-
- "The great scallop... this tatty, scrofulous old rapist,
- is second in depravity only to the common clam."
-