Re: First calculator story Message #16 Posted by rsenzer on 4 Dec 2002, 12:02 p.m., in response to message #1 by Michel Beaulieu
My first calc was a ti sr50 in 1974. I used an hp35 in 1974 when I visited a friend at another college. The first hp calc that I owned was an hp34c which I still have, but it is non-functional at the moment.
Not necessarily comprehensive, but here are some others I have owned:
hp34c,15c,32sii,41c/cv/cx,71b,48gx,20s,19bii,6s&solar, 49g,30s
sr50,51a, ti58,58c,59,66,baii-plus
the sinclair rpn programmable, a couple of radio shack/sharp pocket computers, radio shack ec4021
I recently purchased a fully functional ti58c from an antique store for $5, so of the above, I still own the following:
hp15c32sii48gx,20s,19bii,6s,30s. (I pulled the batteries from the 49 and put it in long term storage -- just don't like it for a variety of reasons.)
ti58c,66,baii-plus. I have backup models for the hp20s,hp32sii,tibaii-plus.
I have and use a number of contemporary calcs not mentioned above. [I am a community college adjunct math instructor.] These include the ti83silver, ti86, ti89, ti92plus. I also have a ti 25,30xiis,34ii,34,36xsolar; assorted versions of casio 115,250,260,300; assorted versions of sharp 500,501,506,531; and a variety of other models that I have probably forgotten to mention.
I tend to rotate usage of these calculators so that the batteries don't go bad. I always carry a 32sii with me in my briefcase as well as one of the ti graphing calculators for teaching purposes. I like to carry another calculator with me as part of the rotation strategy. BTW, the worst of these calculators is the sharp 500, probably the only scientific calculator that might be less accurate than a slide rule.
As the batteries run out on some of these calculators, I just remove them and put the calculator away. I have done this for the casio 250, and will do this with most of the calculators that require a screwdriver to replace the batteries since I don't want to keep hassling with this.
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