[comp.sys.next] More NeXT Info Please

tjb@unhd.UNH.EDU (Thomas J. Baker) (10/25/90)

Hello Again...

Either my first version of this post was lost, or no one knows the answers but
I'll try again...

Does anyone know if NeXT had addressed the problem of high speed modems
being used with the serial ports?  I read in a back issue of Tao that the NeXT 
has problems because it doesn't support hardware flow-control.  Is this true
with the new machines?  What about SLIP?  Is there a NeXT-supported or PD 
version? 

I currently plan to buy either a color station or a cube.  I have concerns that 
16-bit color with no graphics processor will be slow for things like animation, 
etc.  I also think that 32-bit color (and it's price tag) is overkill for a home 
setup, beside that fact that I'd have to wait a year or two to get color that 
way due to it's price.  Has anyone seen a color station in action? 

If I end up getting a cube, is there room to put a second drive inside it?  That
would make two hard disks and a floppy.  Just a thought:  wouldn't it be better
to have an external floppy with the cube so that you could get a long cabel and
put it beside the monitor on the desk while the cube was under the desk?  You're 
more likely to want quicker access to a floppy drive than, say, an optical.  Is
it now impossible to buy a cube/40Mb hard drive/external floppy setup?

For the first time, I just got to sit in front of an '030 cube for an hour and
give it a test drive.  It was great.  I could live with that performance.  It 
seemed to be quite similiar to my MacII, except for some program launches.  I 
can't imagine what it will be like on an '040 and with all the improvements to
the OS, I'm dying by inches to get my own...

Thanks for any info yo can give...


tjb
 
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eps@toaster.SFSU.EDU (Eric P. Scott) (10/26/90)

In article <1990Oct25.130414.3866@uunet!unhd> tjb@unhd.UNH.EDU
	(Thomas J. Baker) writes:
>Either my first version of this post was lost, or no one knows the answers but
>I'll try again...

Another, more likely, possibility is that your inbound mail is broken.

>Does anyone know if NeXT had addressed the problem of high speed modems
>being used with the serial ports?

Yes if you buy one of the new machines or upgrade a current 68030.

>                        What about SLIP?  Is there a NeXT-supported or PD 
>version? 

Yeah, what about it?  Over a year ago Avadis Tevanian, Jr. posted
that he had a working loadable SLIP.  To my knowledge it has
never been released to customers, and we never got a straight
answer on whatever became of it.

>                        Has anyone seen a color station in action?

Yes.

>If I end up getting a cube, is there room to put a second drive inside it?
>That would make two hard disks and a floppy.

Yes, if one of the hard disks is a half-height 340MB or (yuck)
105MB.  If you want two full-height internal drives, you can't
have an internal floppy.

>Just a thought:  wouldn't it be better
>to have an external floppy with the cube so that you could get a long cabel and
>put it beside the monitor on the desk while the cube was under the desk?

I don't know about "better."  It's certainly going to be more expensive.

					-=EPS=-

gillies@m.cs.uiuc.edu (10/27/90)

I am thinking of selling my Mac II and purchasing a NeXT.  Could
someone post the (Dhrystone 2.1, SPECmark, Whetstones) for a
68040 NeXTstation?

Thanks,

Don W. Gillies, Dept. of Computer Science, University of Illinois
1304 W. Springfield, Urbana, Ill 61801      
ARPA: gillies@cs.uiuc.edu   UUCP: {uunet,harvard}!uiucdcs!gillies

daugher@cs.tamu.edu (Walter C. Daugherity) (10/28/90)

In article <61300032@m.cs.uiuc.edu> gillies@m.cs.uiuc.edu writes:
>
>I am thinking of selling my Mac II and purchasing a NeXT.  Could
>someone post the (Dhrystone 2.1, SPECmark, Whetstones) for a
>68040 NeXTstation?

15 Dhrystone MIPS, 2 MFLOPS DP LINPACK.



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paul@cgh.UUCP (Paul Homchick) (10/28/90)

(Walter C. Daugherity) writes:
>15 Dhrystone MIPS, 2 MFLOPS DP LINPACK.

"Dhrystone MIPS"?  Hmm, how many Dhrystones per second?  The current
cube does about 7,000, and a Sparc 1 will do 25,000.  How about the
040 Next?


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daugher@cs.tamu.edu (Walter C. Daugherity) (10/31/90)

From: uunet.uu.net!cbmvax!cgh!paul (Paul Homchick)
Paul Homchick (cgh!paul@dsi.com) advises:

>1 Dhrystone MIPS is how many dhrystone/s the VAX 11/750 does.  It does
>something like 1574.  So the NeXT is 15*1574, which is around 23000.

Based on InfoWorld (Oct. 29, 1990):

For comparison, a 25-MHz 486 comes in at 20 Dhrystone MIPS and an IBM
RS/6000 Model 320 is 27 Dhrystone MIPS. It's easy to slant the results,
though, by handcoding, running entirely in cache with no misses or
main memory accesses, or even writing compilers to produce the fastest
sequence of operations for the benchmark programs.  Consequently Spec, Inc.,
was set up to establish a vendor-independent benchmark, the Specmark.

Here are some Specmarks:

Sun SparcStation SLC	 7.6
Compaq Deskpro 486/25	 8.7
Sun SparcStation 1+	10.0
Sun SparcStation IPC	10.0
Solbourne S4000		12.0
IBM RS/6000 Model 320	22.3
IBM RS/6000 Model 530	28.9

Does anyone have the Specmark rating for the 68030 and 68040 NeXT's?

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Walter C. Daugherity			Internet, NeXTmail: daugher@cs.tamu.edu
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Walter C. Daugherity			Internet, NeXTmail: daugher@cs.tamu.edu
Knowledge Systems Research Center	uucp: uunet!cs.tamu.edu!daugher
Texas A & M University			BITNET: DAUGHER@TAMVENUS