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Old calculator from the 1970's Keywords: Lighting_History

Old calculator from the 1970's

casioh1.JPG casioh1.JPG casioh1.JPG casioh1.JPG casioh1.JPG
File information
Filename:casioh1.JPG
Album name:SeanB~1 / Lamps
Keywords:Lighting_History
Filesize:99 KiB
Date added:Dec 21, 2011
Dimensions:640 x 1011 pixels
Displayed:417 times
Color Space:sRGB
DateTime Original:2011:12:21 16:44:38
Exposure Bias:0 EV
Exposure Mode:0
Exposure Time:1/25 sec
FNumber:f/3.4
Flash:No Flash
Focal length:5 mm
ISO:400
Make:Canon
Max Aperture:f/3.4
Model:Canon PowerShot SX130 IS
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=9965
Favorites:Add to Favorites

Comment 1 to 7 of 7
Page: 1

rjluna2   [Dec 21, 2011 at 06:20 PM]
I have a few pocket electronic calculators in my collection as well Wink
SeanB~1   [Dec 21, 2011 at 06:28 PM]
This one belonged to my father.
streetlight98   [Sep 18, 2012 at 12:19 AM]
Cool! How long have handheld/pocket electronic calculators been around?
Silverliner14B   [Sep 18, 2012 at 05:43 AM]
Mike, the first pocket size calculators first came out in 1970 in Japan and soon became available around the world. They had electronic calculators in the 60s though but they were much bigger.
streetlight98   [Sep 18, 2012 at 03:49 PM]
Ahh so this is one of the first pocket-sized electronic calculators. Smile What was used before electronic calculators? Were those rods with beads still used? (pardon my ignorance)
rjluna2   [Sep 18, 2012 at 04:18 PM]
Did you mean the Abacus? Razz Laughing
streetlight98   [Sep 18, 2012 at 04:55 PM]
That's it! Laughing

Comment 1 to 7 of 7
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