@drmakimber @CasioEdu @christianp @ColinTheMathmo
I bought this 32 years ago, and it is still serving me well!
#CalculatorHistory #OldCasio #EternalPocketCalculators

(Everybody, how old is your pocket calculator? 👴🏻)

Interesting artefact.

"The Sinclair Instrument Wrist Calculator was a simple 8-digit calculator, that was only sold as a mail-order kit. It was released in February 1977 by Sinclair Instrument, a company ran in parallel with Sinclair Radionics. It originally sold for £9.95 (plus VAT)."

https://www.computinghistory.org.uk/det/52845/Sinclair-Instrument-Wrist-Calculator/

#Calculators #CalculatorHistory #RetroCalculators

TubeTime on Twitter has a thread that looks at the internals of this calculator. Fascinating stuff.

"Tube Time @TubeTimeUS

this is one of the world's first electronic calculators, the Friden EC-130, which came out in 1964! it's a really fascinating machine, so let's look at it in more detail."

https://twitter.com/TubeTimeUS/status/1312919889468817410

#History #Calculators #CalculatorHistory #Electronics #Engineering #Technology

@EdS