[coco] A couple of PC hardware questions

[Ray Watts]

Mark,  That REALLY deserves a WOW!  Note that I still have not received 
any replies except for your bit on the internal ZIP drives.

Cheers, Griz
 

mmarlett at isd.net wrote:

>Ray,
>
>The WOW was for a VERY rare on topic post to the CoCo malted list...... That
>was all.....
>
>:)
>
>Mark
>
>  
>
>>I'm not sure what the WOW! is for, Mark.  You did see the Grizzly CoCo 
>>at Pittsburgh.  However, I forgot to mention two other additions crowded 
>>into the CoCo chassis;  your AT keyboard interface and a 128k printer 
>>buffer.  The buffer was added when I bought one the size of a coughdrop 
>>box and stripped the PCB out of it.  I discovered it didn't require the 
>>9V external PS because the 9v went directly to a 5V regulator.  Just 
>>removed the regulator, hooked the PCB to the 65W supply and mounted it 
>>along with everything else where the keyboard was removed.
>>
>>Mark Marlette wrote:
>>
>>    
>>
>>>At 07:08 PM 1/15/2004 -0800, you wrote:
>>>
>>>Ray,
>>>
>>>WOW! On on topic post....I believe that is correct on the internal 
>>>ZIP. Never had one...Internals I go to EZ135, faster than a ZIP100. 
>>>Hard to beat a ZIP external.
>>>
>>>Mark
>>>Cloud-9
>>>
>>>      
>>>
>>>>1.  What is the difference between an AT and an ATX power supply?  I 
>>>>note that the specs for an ATX show a +5V VSB lead.  How is that used?
>>>>
>>>>2. Does a PS/2 keyboard operate identically to an AT keyboard (except 
>>>>for the connector size)?
>>>>
>>>>The reason I ask is that the latest JAMECO catalog has a 150W ATX PS 
>>>>(though a litttle pricey) that will slide easily into the space left 
>>>>by pulling the transformer and voltage regulator heat sink.  This 
>>>>will allow one to install a superboard, a SCSI controller, a floppy 
>>>>controller (both on a Y-cable), a couple of 3.5" floppy drives, a 
>>>>SCSI HD and an internal SCSI ZIPdrive all into a CoCo chassis.  Then, 
>>>>all you have to do is build a polystyrene backplane and cover.  
>>>>Essentially, this is what I did on the Grizzly CoCo except I only had 
>>>>a 65W PS so I had to go with an external ZIP.  And, of course, Disto 
>>>>2-meg and 3 in 1 boards in place of the superboard.  I was able to 
>>>>obtain several internal ZIP's to use for this purpose.  One advantage 
>>>>to internal ZIP's is (correct me if I'm wrong, Mark) you are not 
>>>>restricted to using /h5 and /h6.
>>>>
>>>>JAMECO also has PS/2 keyboards (also a little pricey)  in place of 
>>>>those windows monstrosities flooding the market.
>>>>
>>>>Thanks,    Griz
>>>>
>>>>
>>>>
>>>>--
>>>>Coco mailing list
>>>>Coco at maltedmedia.com
>>>>http://five.pairlist.net/mailman/listinfo/coco
>>>>        
>>>>
>>>
>>>
>>>      
>>>
>>
>>-- 
>>Coco mailing list
>>Coco at maltedmedia.com
>>http://five.pairlist.net/mailman/listinfo/coco
>>
>>    
>>
>
>  
>

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