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From: lunnon@qut.edu.au
Newsgroups: comp.sys.atari.st
Subject: Re: MegaSTe info
Message-ID: <1991Feb4.100645.23401@qut.edu.au>
Date: 4 Feb 91 15:06:45 GMT
References: <1991Feb03.062924.15318@ecst.csuchico.edu> <1991Feb3.121355.5874@marlin.jcu.edu.au>
Organization: Queensland University of Technology
Lines: 68

In article <1991Feb3.121355.5874@marlin.jcu.edu.au>, glmwc@marlin.jcu.edu.au (Matt Crowd) writes:
> In article <1991Feb03.062924.15318@ecst.csuchico.edu> ekrimen@ecst.csuchico.edu (Ed Krimen) writes:
>>Here's some info on the MegaSTe from Gregory (carter@garfield.cs.wisc.edu). 
>>
>>---------------------------
>>
>>The Spectre GCR works very nice with this machine.  You get hard disk 
>>performance of something between a IIfx and IIsi.  600-700 kiloBYTES per 
>>second.  33ms access time.
> 
> I'm just curious, are all ST hard disks this slow ? 33ms.

No It depends whick mech is installed, mine comes in at 300 MB 720 K/s 10 ms
using ratehd. This is a supra adapter and a Wren V



> 
>>
>>I am very pleased. The retail value of the machine is $1979.99.  TOS 2.05's
> 
> This seems to be a lot for a 68000 based machine.

How much is a A2000 ??????



> 
>>
>>Now here is the port listing from the DOCS:
>>
>>Graphics                                         320x200x16
>>                                                 640x200x4
>>                                                 640x400x2
>>
>>Color                                            4096 Colors
> 
> What's the story with 640x400x2 ? An amiga can do 640x400x16 AND even
> 640x400x4096, without any additional hardware.

640*400 only in flicker mode (Interlaced)
Try to do anything usefull in an unexpanded amiga while displaying a 640x200
x16 , extra-halfbright pic. More than 2 planes at 640*200 ( which is the
same as amiga 640x400 ) in an 8 MHz 68K system will require cpu cycles to
acquire video data. In the more colourful video modes you have to run your
CPU in the intervals.

This is why amigas have limits on video ram. ST's have no limit on video ram
except the inherent ST memory limits this makes frame animation much easier
on an ST.

	BOB
	R.Lunnon@qut.edu.au

> 
>>
>>--Gregory
>>
>>---------------------------------
>>
>>-- 
>>         Ed Krimen  ...............................................
>>   |||   Video Production Major, California State University, Chico
>>   |||   INTERNET: ekrimen@ecst.csuchico.edu  FREENET: al661 
>>  / | \  SysOp, Fuji BBS: 916-894-1261        FIDONET: 1:119/4.0
> 
> 
> Matt Crowd.