Path: utzoo!utgpu!watserv1!watmath!att!bellcore!rutgers!cs.utexas.edu!samsung!uunet!mcsun!ukc!strath-cs!cs.glasgow.ac.uk!icdoc!mvax.cc.ic.ac.uk!sunc!umapd51
From: umapd51@sunc.cc.ic.ac.uk (W.A.C. Mier-Jedrzejowicz)
Newsgroups: comp.sys.hp
Subject: Re: diff hp28s hp48sx
Keywords: hp28s, hp48sx, scientific, calculator
Message-ID: <1990Jun15.231000.26125@cc.ic.ac.uk>
Date: 15 Jun 90 23:10:00 GMT
References: <1990Jun14.144629.8506@cunixf.cc.columbia.edu>
Sender: news@cc.ic.ac.uk (USENET News System)
Reply-To: umapd51@cc.ic.ac.uk (W.A.C.Mier-Jedrzejowicz)
Organization: Imperial College Computer Center, London, UK
Lines: 20
Summary:See comp.sys.handhelds for details.


Hi, a lot of people might ask this question in this group so I am
sending a follow up here instead of emailing you. Details of the HP28,
HP48, and other HP handhelds are regularly, indeed frequently, posted in
comp.sys.handhelds. Postings about HP handhelds make up more than half
of the total postings in that area.
As for your question, briefly the HP48SX (Scientific eXpandable) is just
that, eXpandable. It has infrared input AND output, an RS232 port (a
special cable is needed, but it is just a straight-through 4-wire cable)
with Kermit built-in to let you transfer data to and from PCs, as well
as direct transfer to printers. It has slots for two plug-in Epson
memory cards - ROM or RAM. On the software side, the internal ROM is
double the size of of that on the 48 - the same programming language but
lots of extra features, including symbolic integration, efficient
handling of units, and excellent graphics. The 48 graphics screen is
bigger than that of the 28 too.
Wlodek Mier-Jedrzejowicz,
Space and Atmospheric Physics, Imperial College, London, U.K.
BITNET: UMAPD51 @ VAXA.CC.IC.AC.UK
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