[coco] A couple of PC hardware questions

[mmarlett at isd.net]

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
>>
>>
>>
>>
>
>
>
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