Archives for September 2021

September 2021 (2)
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Sinclair Cambridge Programmable

OK, the news that Sir Clive Sinclair died today (RIP, Sir Clive!) caused me to remember that I have another Sinclair calculator in my collection, apart from the two I’ve already talked about (the Sinclair Cambridge Scientific and the Sinclair Scientific). It’s the Sinclair Cambridge Programmable. Yes, it can be programmed! And, just like the Casio fx-98 I talked about last time, it was licensed in the US to produce the Radio Shack EC-4001 (more on that in a moment). […]

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Casio fx-98 calculator

OK, time for another quick delve into my calculator collection: it’s the Casio fx-98. This particular one is interesting for a few reasons: first is it’s a scientific calculator, albeit not RPN; second, it’s the size of a credit card, even though it’s thicker; third, it’s solar powered – no batteries to worry about; and finally, Casio licensed it out to Radio Shack who produced the equivalent under their own name. […]

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