|  | re:< Note 323.0 by DSM::GOULD "Caress of Steel" >
                         -< hard disks are expensive >-
    
>    Why si it that a 20 MEG hard disk drive for the Atari can cost
>    somewhere between $600-$700, when the same hard disk drive for an
>    IBM PC might cost only $250 or $300 ?
>    My guess is that it is because the IBM has been around longer ??
     
>    Maybe a silly question. But I want a hard disk frive and cannot
>    afford one. I went into a store recently and saw several 20 MEG
>    hard disk drives for an IBM PC for around $250-$300...maybe they
>    were rip offs ? 
    No, it's not because IBM has been around longer.  It's a matter
    of competitive markets.  There are zillions of PClones around, and
    lots of disk vendors.  To attach a hard disk to a PClone, you need
    just the drive (ST225 20MB now around $250) and a controller (PC
    bus to ST-506 type, usually around $100).  Many PCs have combo HD/FD
    controllers, making it even cheaper.
    To put a hard disk on an ST, you need the drive, an ACSI ("DMA")
    special adapter (low volume item, around $100 retail) which usually
    gives you SCSI, then a SCSI controller, and a SCSI-ST506 controller.
    And a power supply, since (unlike a Clone) there's no spare juice
    in the ST.  Since few companies (Supra, Atari, a couple others)
    are in this market, the prices haven't fallen they way PC drives
    have.  (Of course, the drive is the same; you can attach additional
    PC drives to your Supra box, for instance.)
    Power with the price.  A hard disk ST costs about as much as an
    AT clone with hard disk.
 | 
|  |     Re: .-1
    
>    To put a hard disk on an ST, you need the drive, an ACSI ("DMA")
>    special adapter (low volume item, around $100 retail) which usually
>    gives you SCSI, then a SCSI controller, and a SCSI-ST506 controller.
    
    All you need is the ACSI adaptor (available from Berkeley Microsystems
    or Supra) and a SCSI drive (such as a Xebec 4040) or a SCSI controller
    (such as an Adaptec 4070 or Xebec S1410) and an ST506 drive (such
    as a Seagate ST225 or a DEC RD54).
    
    The savings in the PC world are:
    
    	- No SCSI controller ($150)
    	- No additional enclosure/power supply ($100)
    Since it is perceived to be "more difficult" to put a winchester
    disk on your ST, they charge more. Don't buy one. Make your own.
    				- HBM
    
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