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Conference 7.286::atarist

Title:Atari ST, TT, & Falcon
Notice:Please read note 1.0 and its replies before posting!
Moderator:FUNYET::ANDERSON
Created:Mon Apr 04 1988
Last Modified:Tue May 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1433
Total number of notes:10312

323.0. "hard disks are expensive" by DSM::GOULD (Caress of Steel) Wed Nov 30 1988 18:13

    Please re-direct me if this question is already answered in another
    note.
    
    
    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 ? 
    
    
    Dave
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323.1PCs are better for hardware hackingDELNI::GOLDSTEINPlesiochronous percussionWed Nov 30 1988 19:1431
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.
323.2A SCSI controller _AND_ a SCSI-ST506???SKITZD::MESSENGERDreamer FithpThu Dec 01 1988 16:1420
    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
    
323.3thanksDSM::GOULDCaress of SteelThu Dec 01 1988 17:188
    Thank you all much. Makes sense. Very interesting too. When I can
    afford one I will be getting one ! I wish I had the background to
    actually get the parts and put it together myself. But at present
    I do not have the time to put into it and do it right, and learn
    all the details. It would be a fun project.
    
    
    D.G.
323.4DIY Hard Disks...BOOZER::LANEFri Dec 02 1988 12:375
    If you are interested in making your own , I suggest you read note
    41 by Pat Keane. I intend to follow this route when finances/time
    permits.
    
            Roger Lane