[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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