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   comp.sys.ibm.ps2.hardware      Discussing IBM PS/2 hardware      42,985 messages   

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   Message 41,636 of 42,985   
   Louis Ohland to schimmi   
   A miss is as good as a mile Re: Did you    
   19 Apr 23 14:46:54   
   
   From: ohland@charter.net   
      
   The local bus is between the CPU and the single chip SCSI, the BIC is at   
   the other end of the local bus and the BIC then connects to the MCA bus.   
      
   I czeched, the 8556 and 9556 are the ONLY PS/2 that use the Single Chip   
   SCSI. All other system-board SCSI use MCA connected SCSI.   
      
   You can see why this SCS caught my attention.   
      
   schimmi wrote:   
   > Hm, I thought, the Local Bus on a PS/2 _is_ MCA, like VLB or PCI on other   
   machines. Do I miss something here? :)   
   >   
   > Louis Ohland schrieb am Mittwoch, 19. April 2023 um 01:41:20 UTC+2:   
   >> Tom, IMHO this is about the most specific patent from IBM. No, you can't   
   >> build one after reading it, but it answers the design philosophy of   
   >> selling only what is required.   
   >>   
   >> It seems the design goal was to NOT support multi-tasking. What a   
   >> conundrum, a 9533 with single chip SCSI and XGA-2 vs a 9556.   
   >>   
   >> At some point, the irons should be removed from the heat and tempered...   
   >> Tomas Slavotinek wrote:   
   >>> On 18.04.2023 19:12, Louis Ohland wrote:   
   >>>> Tom, OCR or not, did you READ it?   
   >>>   
   >>> Not yet, Louis. I have too many irons in the fire...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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