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In article <Oct.24.13.32.39.1992.9165@marcin.rutgers.edu> imielins@marcin.rutgers.edu (tomasz imielinski) writes:

>1. What are the smallest possible sizes of flashmemory
>cards available on the market, both in terms of size
>and memory capacity?

Offhand the smallest card I know of is a 256KB PCMCIA Flash EPROM
card.  There are probably smaller capacities.  Psion makes Flash EPROM
modules but they are considerable thicker than most PCMCIA cards and
are proprietary to them.  All PCMCIA cards are the same size width and
depth, thickness varies from 3.3mm to 10.5mm.  Intel and SunDisk make
them.  I've heard but can't confirm that Intel is having difficulties
manufacturing Flash EPROMs.  You can get a list of PCMCIA manufacturers
and vendors via anonymous ftp as
csd4.csd.uwm.edu:/pub/Palmtop/pcmcia.sources.

>2. What is the largest capacity of cards with magnetic band,
>like the ones used for credit cards, can these be updated
>or are they read only?  For example, I have seen "debit cards"

I'm not very familiar with these but I do know they have only
a few tracks that altogether only hold a several hundred bits.

What exactly are you looking for?  It sounds like you are looking for
some sort of compact durable medium density data storage.  Have you
looked at Dallas Semiconductor's data buttons or Datakey's card and key
storage systems?  If you provide more information we can help you
more.
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<-:(= Anthony Stieber	anthony@csd4.csd.uwm.edu   uwm!uwmcsd4!anthony