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February 2007

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Subject:
From:
Dharma Kemp-Bresett <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Dharma Kemp-Bresett <[log in to unmask]>
Date:
Tue, 27 Feb 2007 12:25:49 -0500
Content-Type:
text/plain
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text/plain (98 lines)
I have one of those sitting on a shelf in my sons room.....it was a hand me
down from my dad, my first "good" calculator...
Dharma
KAW/USA Ltd. 
39 Simon Street, #4 
Nashua, NH 03060 
603-886-8711 x212 
603-881-8763 fax 

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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Tuesday, February 27, 2007 9:45 AM
To: [log in to unmask]
Subject: Re: [TN] APEX NTC

Hi, Werner and Inge
I remember that most of the old algorithm development was done on a
combination of advanced calculators (they had a root/square function!) and
sliderule calculations. I remember when I calculated Cartesian coordinates
using this method, and then I stored all of my insertion machine programs on
punched paper tape or IBM data entry cards. There wasn't any such thing as
Gerber data, everything was designed on film.
And I remember how the card or tape readers never quite worked right all the
time. I learned to stand back the first time I entered a new program into
the machines and pressed "go".
I believe more algorithmic "macros" were actually developed on the HP
22-series calculators than were ever developed on the first mainframe
computers. I do remember that the HP-35 could run programs that the
concurrent IBM mainframes were not capable of. Even when the first Apple
computers came out, the HP calculators were much more powerful at the time.
Does this jog your memory: http://www.hpmuseum.org/35proto.jpg ? I believe
it was the first calculator that had all or most of the sliderule functions.
I wish I still had mine.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Werner Engelmaier
Sent: Tuesday, February 27, 2007 8:12 AM
To: [log in to unmask]
Subject: Re: [TN] APEX

Hi Inge,
We were not totally without tools---we had sliderules; remember those.



Werner



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