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From: chan@eeserv.ee.umanitoba.ca (Andrew Chan Ph# 275-2456)
Newsgroups: comp.sys.handhelds
Subject: Difference between HP-28C and HP-28S
Message-ID: <1990Feb1.034448.15718@ccu.umanitoba.ca>
Date: 1 Feb 90 03:44:48 GMT
Sender: news@ccu.umanitoba.ca
Reply-To: chan@eeserv.ee.umanitoba.ca (Andrew Chan Ph# 275-2456)
Organization: Electrical Engineering, U of Manitoba, Winnipeg, Manitoba, Canada
Lines: 3

I bought an HP-28C years ago and never got to use it much.  Apparently
the HP-28S is a much improved calculator.  Would someone please explain
to me their differences?  Is there an upgrade plan from HP?