Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!sdd.hp.com!hplabs!hpfcso!rrd
From: rrd@hpfcso.HP.COM (Ray Depew)
Newsgroups: comp.sys.handhelds
Subject: Re: RAM (or ROM) card contents (was: Hidden EQ Library features)
Message-ID: <7360045@hpfcso.HP.COM>
Date: 14 Jan 91 18:40:24 GMT
References: <1991Jan9.092526.23383@santra.uucp>
Organization: Hewlett-Packard, Fort Collins, CO, USA
Lines: 16

In comp.sys.handhelds, frank@grep.co.uk (Frank Wales) writes:

    As any old-time HP owner will tell you, in order to make something
    uneraseable, you need to snip its corner off.  If you were to crack open
    your Equation Library card and examine the actual memory chips, you'd
    see that the top-left corners are missing.  In the old days, this was an
    unavailable part of the storage area, but technology improves, and so
    today one has the choice of 100% usage, or write-protection and 98%
    usage (+/-1%, dependent on the width of one's scissors).

Just make sure you snip off the correct corner.  If you do the wrong corner,
your 48 will only do algebraic.  Thinks it's a TI.


Ray again
-- okay, who's gonna put the next silly thing on here?