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Fowler's Universal Calculator (around 1940)

Fowler's Universal Calculator (around

#HP-97 #programmable #calculator - 1976  #retrocomputer #vintagecomputer

#HP-97 #programmable #calculator - 1976 #retrocomputer #vintagecomputer

#Sinclair #Cambridge #Programmable #Calculator (around 1975) #retrocomputing #vintagecomputer

Sinclair Cambridge Programmable Calculator (around

#HP-35 - #HP's first pocket #calculator by #retrocomputers, via Flickr #vintagecalculator #retrotechnology

It was introduced at a time when most calculators (including expensive desktop models) had only the four basic functions.The was the first pocket calculator with transcendental functions and the first with RPN. Introduced in 1972

#Texas Instruments Programmable Calculator  #SR-56 by retrocomputers, via Flickr #TI #retrocomputing #calculator

#Texas Instruments Programmable Calculator #SR-56 by retrocomputers, via Flickr #TI #retrocomputing #calculator

HP-41CV Scientific Calculator by retrocomputers, via Flickr

HP-41CV Scientific Calculator by retrocomputers, via Flickr

HP-32 SII Scientific Calculator by retrocomputers, via Flickr

HP-32 SII Scientific Calculator by retrocomputers, via Flickr

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