Type I cards are thinner than Type II which are thinner than Type III. If
you look at at Type II card, you will notice that it is thinner on three
sides than in the middle. The thin part, which acts as the card guide,
retains the Type I size specifications. Thus, you can use a Type I card in a
Type II slot. The types should not be confused with the PCMCIA electrical
standards, which used a different (arabic) numbering system. Most "current"
PCMCIA cards (such as an XJack modem or 3Com network card) are Type II and
PCMCIA 2.0.
Type I came out first, so many SRAM cards are Type I. For example, the first
Poqet SRAM cards are Type I in size, but used a pre-PCMCIA 1.0 protocol.
Later Poqets were PCMCIA 1.0 compliant. The HPLX 95 palmtop is PCMCIA 1.0
compliant (IIRC) and can read either Type I or Type II SRAM cards, but needs
a driver for using Flash cards -- it came out a little later than the Poqet
and is more compliant with the early PCMCIA standards.
Windows through Win 98 can handle SRAM cards with a couple of device drivers
(CARDDRV.SYS is one) installed. I forget the exact drivers needed, but just
search in the Windows Help for SRAM to find the information. Win XP seems to
have dropped support for SRAM cards.
At least some Intel flash cards used a different format than other flash
cards, such as SunDisk/SanDisk, so the two types are not compatible.
Bob
Message: 18
Date: Wed, 12 Oct 2005 20:24:36 -0400
From: Sridhar Ayengar <ploopster at gmail.com>
Subject: Re: Need a driver: Intel PCMCIA Flash card
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Message-ID: <434DA944.30707 at gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Ethan Dicks wrote:
On 10/12/05, Simon Fryer <fryers at gmail.com>
wrote:
I am guessing, by looking at the size of the card,
this is a Type II
card. Most PCMCIA card readers fitted to laptops and PCs will only
read Type III PCMCIA memory cards.
Perhaps you have an off-by-one error?
Most recent laptops only have a single Type II slot, but many Pentium
laptops have a "dual Type II/Type III socket" meaning you can use two
Type II cards simultaneously or one Type III (the thickness of the
card blocks the upper slot)
Type I cards were strange and most semi-modern stuff doesn't support
them, AFAIK.
But aren't most of those Intel Series 2b cards Type I? I mean the ones
that hold IOS images in slightly older Ciscos.
As far as I can tell, they're just a bit thinner than your average
ethernet/wireless/etc card.
Peace... Sridhar