[coco] A couple of PC hardware questions

Mark Marlette mmarlett at isd.net
Thu Jan 15 21:27:17 EST 2004


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
>
>
>
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