The Calculated Risk
Anyone remember how to do division?
♦
Photo sources:
Photo sources:
Antique Vintage R.C. Allen Model 805
Mechanical Adding Figuring Machine
Buy it (as of 2014-01-19) for $99.95
from gwenna_baker on eBay
Harwell’s 1951 WITCH & IBM 305 RAMAC, 1956
Gadgets and Design blog
Woman at old computer terminal
CarrieBradshawIsFullOfIt.com
Tektronix Model 31 Electronic Calculator
Old Calculator Museum
Vintage Texas Instruments
The Little Professor Electronic Calculator
from braegsalot on eBay
Spreadsheet screenshot
OS2ezine.com (really!)
Modern desktop computer
mosup.com
Scientific Calculator desktop app
eeweb.com
Calculator Cell App
CellPhoneForums.net
Solar Flare
LiamScheff.com