Re: More Zoomer experiences

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Date: Tue, 26 Oct 93 10:01:31 PDT
From: Lonnie Smith <starnet!apple!grace.rt.cs.boeing.com!smithh>
Message-id: <9310261701.AA11129@grace.rt.cs.boeing.com>
To: zoomer-list-1993@grot.starconn.com
Subject: Re: More Zoomer experiences
Status: OR

Anthony you write:

> 
> The number of pins didn't change, if they did there would be some
> problems allowing a PCMCIA 1.0 card to physically fit into a 2.0 slot.
> PCMCIA 2.0 is fully backward compatible with PCMCIA 1.0 so any pin
> changes are handled as a superset of PCMCIA 1.0.
> 

I see the logic regarding the number of pins not changing.  However, I'm
still not clear on exactly what did change between the 1.0 and 2.0 releases.
Was it the signal definitions or something else?

> 
> The main problem has been confusion between Release and Type.  Using
> arabic numerals with decimals points for Release, and roman numerals
> for Type hasn't worked well.  In retrospect letters may have been a
> better choice for Type, or perhaps the actual thickness in millimeters
> instead.
> 

Using millimeters of thickness makes good sense.  In that way one not only
can distinguish between types, but, you also get some useful information, 
i.e., mm of thickness.

Lonnie
--

H. Lonnie Smith               Research & Technology
smithh@atc.boeing.com         Boeing Computer Services
Bellevue Campus               M/S 7L-40
                              P.O. Box 24346
1.206.865.3338   :voice       Seattle, Washington, USA
1.206.865.2965   :FAX         98124-0346
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