ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
600 KW 120/208 3 Phase Y protection
by Yooperup. 07/24/17 12:20 PM
1913 American Electrician's Handbook
by gfretwell. 07/20/17 01:08 PM
Green House wiring
by ghost307. 07/20/17 09:10 AM
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 07/18/17 08:06 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
239,326 Are you busy
174,796 Re: Forum
167,166 Need opinion
Who's Online Now
0 registered members (), 79 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 1 of 2 1 2
#38976 - 06/07/04 08:26 AM Calculators?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,217
SI,New Zealand
Here's a little question for you all.
What year did you see the first Electronic Calculator come on the market?.
What year did you first buy one and what brand was it?.
We were never allowed to have the new fangled adding machines at school when they first came out.
In hindsight that was really a blessing in disguise, we learned to add with our heads.
Look what happens when a supermarket loses power these days!. [Linked Image]


Let's face it, these days if you're not young, you're old - Red Green grin

Work Gear for Electricians and the Trades

#38977 - 06/07/04 01:06 PM Re: Calculators?  
hbiss  Offline
Member
Joined: Dec 2003
Posts: 886
Hawthorne, NY USA
Hmm, good question. The first one I ever saw was at a company I worked for back in the mid 60's. This was a huge 2 piece unit not unlike our PC/monitor/keyboard setup. The "processor" sat on the floor with a numerical keypad and neon (nixie tube)display "terminal" attached by a multiconductor cable. This was only an electronic adding machine and replaced the mechanical clunkers in use back then. It would only add, subtract, multiply and divide.

We've come a long way.

-Hal


#38978 - 06/07/04 01:26 PM Re: Calculators?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,217
SI,New Zealand
Hal,
Ahh, the Nixie tube. {digresses for a moment}
Yes, we have come a long way!.
Great to see though. [Linked Image]


Let's face it, these days if you're not young, you're old - Red Green grin

#38979 - 06/07/04 06:12 PM Re: Calculators?  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
My father brought home a Brother (I forget the actual model number) in the early 1970s. I can't remember the brand or model of the first one I owned, thanks to my parents, but I can picture it even now. It was the typical LED-display calculator of the time, four functions plus constant. I remember the nice large square keys compared to some other models, with red and orange for the C and K keys.

Like many others, it was probably sold under several different brand names. I think I was about 8 or 9 at the time, so that would place it to 1974/75. Then my parents bought me a Texas Instrument Programmable TI-57 for Christmas in 1977.

Despite that, and perhaps aided by having a mother who was a math teacher, I still learned to do mental arithmetic in my head, and unlike many of today's kids, don't end up using a calcultor to add 2 and 2! [Linked Image]

For some great old machines, including some of those earlier models from the 1960s, have a look here:
http://www.oldcalculatormuseum.com/

If you're like me, and then discovered just how wonderful the Hewlett-Packard models were, have a look at this site:
http://www.hpmuseum.org/


#38980 - 06/07/04 06:32 PM Re: Calculators?  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
I vaguely remember some type of game that we used to play on a TI Calculator. I don't remember specifics, but after entering some specific info into the Calculator the object of the game was to slow the speed of a falling object (or a spacecraft?) to keep it from crashing.

BTW, I used my Dads' sliderule before a calculator. The words 'Log Log Duplex Decitrig' hold no meaning for me but are burned into my memory.

Help Me!! ...
[Linked Image]
Bill


#38981 - 06/07/04 09:30 PM Re: Calculators?  
hbiss  Offline
Member
Joined: Dec 2003
Posts: 886
Hawthorne, NY USA
Yes the slide rule. I had a kid (kid compared to a slide rule anyway, he was in his twenties) come to me with one and ask "how do you measure anything with this?" [Linked Image]

I still have a HP-21 and use it everyday. [Linked Image]

-Hal


#38982 - 06/07/04 10:42 PM Re: Calculators?  
Electric Ian  Offline
Member
Joined: Feb 2004
Posts: 133
MA, USA
The "Bomar Brain" cica 1975. This was a 4 function calculator and as I recall sold for about $80 to $100. I believe there was one available with a square root function but that was much more expensive.


#38983 - 06/08/04 04:18 AM Re: Calculators?  
Big Jim  Offline
Member
Joined: Jul 2003
Posts: 394
Denver, CO USA
I was at colorado School of Mines in the early 70's. Because of our reputation as a school, we got one of the first allocations of the new HP35 scientific calculator. I blew my savings and bought one - $150 back then, I think - and I felt as though I had died and gone to heaven when I used it on the first test. We had been trained to use all those funny extra scales on the slide rule and never left home without a book of tables. The HP was all that and more.


#38984 - 06/08/04 06:22 AM Re: Calculators?  
SteveMc  Offline
Member
Joined: Feb 2004
Posts: 62
Rock Hill, SC
I remember having a TI in the mid-70's when I went back to college. One of my class mates asked what the (AC adapter)jack on the side was used for, we told him it was for an earphone so you could get the answers during a test and the instructor wouldn't know.


#38985 - 06/08/04 09:01 AM Re: Calculators?  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
I still have an old slide rule that was my father's tucked away in a cupboard, complete with a guide book. Learning to use one really isn't that difficult, and I learned how to do basic multiplication and division on one when I was a kid. (The HP museum site linked above has a section on slide rules for anyone interested.)

By the way, it's interesting to look at some old science-fiction books and movies of the 1950s where they depict the navigator carrying around a slide rule to perform hisr navigational computations. My, how some things don't turn out as people thought they would. [Linked Image]


Page 1 of 2 1 2

Member Spotlight
togol
togol
NW In. USA
Posts: 421
Joined: September 2005
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.017s Queries: 16 (0.004s) Memory: 0.8199 MB (Peak: 0.9970 MB) Zlib enabled. Server Time: 2017-07-25 14:28:47 UTC